This case is before us on petitioner’s motion to suppress evidence and to shift the burden of proof, treated as a motion to shift the burden of going forward with the evidence, to respondent.1 Respondent determined a deficiency of $769,769.34 in petitioner’s 1979 Federal income tax. Respondent’s statutory notice of deficiency which contained this determination was based solely upon information respondent secured from certain grand jury proceedings. We must decide whether respondent’s use of these grand jury materials to determine the deficiency against this petitioner was improper. If such use was improper, we must additionally determine *311whether the exclusion of evidence, and/or shifting the. burden of going forward to respondent, are appropriate sanctions in the context of this case.
FINDINGS OF FACT
The facts are not materially in dispute. During 1981, a Federal grand jury within the jurisdiction of the U.S. District Court for the Eastern District of New York commenced an investigation into alleged large-scale, multimillion dollar drug trafficking, involving a number of individuals, including Henry Kluger, the husband of petitioner Debra Kluger. In the course of this grand jury investigation, various books, records, and other documents were subpoenaed by, or presented to, the grand jury; additionally, transcripts were made of testimony of witnesses called to testify.
On February 27, 1982, Henry Kluger died, and pending criminal indictment proceedings against , him were therefore terminated. On March 29, 1983, an assistant U.S. attorney, without petitioner’s knowledge, applied to the U.S. District Court for the Eastern District of New York, pursuant to rule 6(e)(C)(3)(i) of the Federal Rules of Criminal Procedure, for an order authorizing "the United States Attorney for the Eastern District of New York to disclose to the Internal Revenue Service the testimony, books, records and other documents subpoenaed and otherwise presented to the Grand Jury in connection with [the investigation of Henry Kluger] for the purpose of determining,, establishing, assessing and collecting the federal civil tax liabilities of HENRY KLUGER and his heirs, and for use in any judicial proceedings related thereto.” The sole ground offered in support of this motion was a statement that Internal Revenue Service agents "have determined that the books, records and other documents and testimony obtained during the Grand Jury’s investigation of this matter are necessary to establish, assess and collect the federal civil tax liabilities of Henry Kluger.” The motion was made ex parte.
Later that same day, March 29, 1983, the Honorable Henry Bramwell, U.S. District Judge, granted the U.S. attorney’s motion under rule 6(e)(3)(C)(i), Fed. R. Crim. P., by order which provided in pertinent part as follows:
*312the United States Attorney for the Eastern District of New York is hereby authorized to make available to agents of the Internal Revenue Service all books, records and documents subpoenaed by or presented to the Grand Jury pertaining to [Henry Kluger] and the transcripts of testimony presented to the Grand Jury in that connection for purposes of determining, establishing, assessing and collecting the Federal civil tax liability of Henry Kluger and his heirs, and for use in any judicial proceeding related thereto.
No civil litigation was in preparation or pending between the United States, decedent, his estate, or his survivors, on March 29, 1983.2
On June 15, 1983, respondent issued a statutory notice of deficiency for 1979 to petitioner, individually and as the surviving wife of Henry Kluger.3 Petitioner timely filed a petition with this Court contesting said deficiencies, at which time she was a resident of the State of New York. As indicated above, this statutory notice determined that $769,769.34 in additional income tax was due on the joint Federal income tax return petitioner had filed with Henry Kluger for 1979. The determination concededly was based solely upon information obtained by respondent from the grand jury investigation of Henry Kluger in the U.S. District Court for the Eastern District of New York, pursuant to that court’s order of March 29, 1983, under rule 6(e)(3)(C)(i), Fed. R. Crim. P. (hereinafter referred to as the rule 6(e) order). The sole basis alleged for the asserted deficiency was respondent’s determination that Henry Kluger had earned $1,086,111.49 in unreported income from illegal drug trafficking.
*313OPINION
Petitioner contends that respondent’s receipt of information produced by the grand jury investigation of Henry Kluger (hereinafter the grand jury materials) was not in compliance with the requirements of rule 6(e), Fed. R. Crim. P., as interpreted by the U.S. Supreme Court in the recent cases of United States v. Baggot, 463 U.S. 476 (1983), and United States v. Sells Engineering, Inc., 463 U.S. 418 (1983), which were released subsequent to the issuance of the rule 6(e) order herein, and such receipt therefore constituted an abuse of the grand jury process requiring the suppression of all of the grand jury materials in this proceeding. Petitioner further contends that, if the grand jury materials are to be suppressed in this proceeding, the notice of deficiency herein, which was based solely on information contained in the grand jury materials, is without any foundation whatsoever, and such notice therefore is not entitled to the presumption of correctness which generally attaches to statutory notices. Petitioner therefore concludes that the burden of going forward with the evidence must be shifted to the respondent in this case, and that respondent should be allowed to satisfy his proposed burden only with what petitioner describes as "untainted evidence.’’4
Respondent does not deny that the statutory notice of deficiency herein was based solely on information culled from the grand jury materials. He denies, however, that his receipt and use of such information was improper in this case and argues that suppression of the materials, and the alleged consequent results argued by petitioner, are therefore unwarranted. In support of this conclusion, respondent points out that the grand jury materials were transmitted to the Internal Revenue Service pursuant to an order of the District Court for the Eastern District of New York which was secured only after full disclosure to the District Court of the purpose for which the materials were sought, and argues that the existence of this District Court order deprives this Court of jurisdiction to even consider petitioner’s suppression motion.
*314Secondly, respondent maintains that even if jurisdiction is present, his receipt and use of the grand jury materials did not constitute an abuse of the grand jury process: In this regard, respondent concedes that the rule 6(e) order, pursuant to which the grand jury materials were released to the Internal Revenue Service, did not satisfy the criteria subsequently announced by the Supreme Court in United States v. Baggot, supra, for proper issuance of such orders. However, respondent argues that the principles announced in that decision should not apply retroactively to invalidate the present rule 6(e) order.
Finally, respondent contends that even if we determine that Baggot and Sells Engineering, Inc., should be retroactively applied, nevertheless suppression of the grand jury materials is appropriate in the context of this case.
I. The Power of This Court To Review the Rule 6(e) Order
A. Jurisdiction
Respondent’s contention that this Court is without authority to consider the ultimate issue presented on this motion, being jurisdictional in nature, must be addressed as a threshold matter. Shelton v. Commissioner, 63 T.C. 193, 194-195 (1974).
There is no question that this Court is a court of limited authority and may exercise jurisdiction only to the extent expressly provided by Congress. Sec. 7442; Medeiros v. Commissioner, 77 T.C. 1255, 1259 (1981); Wilt v. Commissioner, 60 T.C. 977, 978 (1973). We nevertheless have jurisdiction to determine whether we have jurisdiction. Hazim v. Commissioner, 82 T.C. 471 (1984); Brannon’s of Shawnee, Inc. v. Commissioner, 69 T.C. 999, 1001 (1978). Section 6213 confers jurisdiction on this Court, upon the issuance of a statutory notice of deficiency and the timely filing of a petition, to redetermine deficiencies in income, estate, gift, and certain excise taxes. Secs. 6211-6212, 6214-6215; Estate of DiRezza v. Commissioner, 78 T.C. 19, 25 (1982).
In this case, there is no dispute that respondent issued a statutory notice of deficiency in which an underpayment of income tax was determined, or that petitioner timely filed a petition with this Court. We thus have been properly presented with subject matter within our statutorily defined jurisdic*315tion, and we clearly have the authority, as well as the duty, to consider the propriety of the determination. Secs. 6213, 7442; Dorl v. Commissioner, 57 T.C. 720, 721 (1972), affd. per curiam 507 F.2d 406 (2d Cir. 1974).
It was early recognized that this Court, like any court having jurisdiction over the subject matter, "must consider all matters necessary to the proper exercise of the jurisdiction.” Fidelity Trust Co. v. Commissioner, 4 B.T.A. 411, 423 (1926). The Tax Court, that is, possesses all necessary and usual powers essential to carrying out its functions. Cf. Goldsmith v. Board of Tax Appeals, 270 U.S. 117, 122 (1926); Reo Motors v. Commissioner, 219 F.2d 610, 612 (6th Cir. 1955).
Determining the admissibility of evidence is part of the normal power of any trial court and is essential to the proper discharge of its duties. United States v. 1617 Fourth Avenue, S. W., 406 F. Supp. 527, 528 (D. Minn. 1976). Indeed, this Court would be derelict in its duties if it refused to entertain questions regarding the admissibility of evidence solely on the ground that such an inquiry is not a proper function of this Court. Section 7453 specifically provides that, in general, "the proceedings of the Tax Court * * * shall be conducted * * * in accordance with the rules of evidence applicable in trials without a jury in the United States District Court of the District of Columbia.”5 Rule 143. Moreover, this Court has on numerous occasions recognized its authority to inquire into the question of admissibility of evidence. See, e.g., Riland v. Commissioner, 79 T.C. 185, 208 (1982); Guzzetta v. Commissioner, 78 T.C. 173,174-184 (1982); Perillo v. Commissioner, 78 T.C. 534, 537-541 (1982); Black Forge, Inc. v. Commissioner, 78 T.C. 1004, 1010-1013 (1982); Nicholas v. Commissioner, 70 T.C. 1057, 1062-1063 (1978); Gordon v. Commissioner, 63 T.C. 51, 63-72 (1974), affd. per curiam on this point 572 F.2d 193 (9th Cir. 1977); Suarez v. Commissioner, 58 T.C. 792, 801-814 (1972). It is therefore clear that this Court has jurisdictional authority to entertain questions concerning the admissibility of evidence in proceedings pending before it, as a necessary incident to its statutory power to redetermine proposed income tax deficiencies.
*316Respondent contends that the fact that the grand jury materials were acquired by the Internal Revenue Service pursuant to the rule 6(e) order, issued upon alleged full disclosure of the facts, should somehow alter the above well-established rules and should operate to deprive this Court of jurisdiction to consider petitioner’s present motion. Respondent thus states on brief that "The Tax Court lacks jurisdiction to review the validity of a Rule 6(e) order.” Respondent errs both in his jurisdictional conclusion as well as his assertion regarding the scope of inquiry necessitated by petitioner’s present motion.
First, as discussed above, determinations regarding the admissibility of evidence in proceedings before this Court are an inherent power incident to this Court’s duty to redetermine proposed income tax deficiencies. The fact that a determination of admissibility of evidence involves an inquiry into the propriety of actions of other courts, or other branches of Government, has never been thought to deprive this or any other Federal court of the authority to exercise that power, and this is true whether or not the ground alleged in favor of suppression is that a Federal court applied improper standards of Federal statutory or constitutional law in issuing a disclosure order or search warrant. See, e.g., Perillo v. Commissioner, supra at 537-541 (where we examined the validity of a Federal District Court order authorizing a wiretap pursuant to 18 U.S.C. sec. 2516(1)(1982)); Nicholas v. Commissioner, supra at 1062-1063 (where we examined the validity of a search warrant issued by a Federal District Court authorizing a search of a taxpayer’s premises); Gordon v. Commissioner, 63 T.C. at 65-72 (where we examined the validity of a search warrant issued by a U.S. commissioner authorizing the search of a taxpayer’s premises). Thus, our jurisdiction to consider the propriety of respondent’s receipt of the grand jury materials is not, in the context of this case, vitiated by the interposition of the rule 6(e) order of the District Court for the Eastern District of New York.
Respondent on brief relies principally upon language contained in Matter of Grand Jury Proceedings, Miller Brewing Co., 687 F.2d 1079 (7th Cir. 1982), vacated in part 717 F.2d 1136 (7th Cir. 1983), and Conforte v. Commissioner, 692 F.2d 587 (9th Cir. 1982), affg. in part, revg. and remanding in part *31774 T.C. 1160 (1980), in support of his contention that this Court is without jurisdiction to review the present rule 6(e) order. Respondent’s reliance upon Miller Brewing Co. is misplaced, and we refuse to accord to Conforte the effect for which respondent contends.
In Miller Brewing Co., the Court of Appeals for the Seventh Circuit was presented with a question concerning the propriety of certain transfer procedures utilized by a Federal District Court in its consideration of a rule 6(e) motion. Under the procedure adopted by the District Court, the Tax Court would have been required to make a determination ab initio whether to disclose under rule 6(e) certain grand jury materials. The Court of Appeals rejected this procedure in favor of one requiring the District Court, rather than the Tax Court, to make the initial rule 6(e) disclosure determination. In so holding, the court stated (p. 1097) that "it is not at all clear that the [T]ax [CJourt has the power to order disclosure of Federal grand jury materials.” (Emphasis supplied.) We do not dispute the accuracy of this statement. See rule 6(e)(3)(D), Fed. R. Crim. P.; cf. In re State of Illinois Petition to Inspect & Copy Grand Jury Materials, 659 F.2d 800, 803 (7th Cir. 1981).
However, the inquiry here does not involve an ab initio rule 6(e) disclosure determination. Rather, we must solely decide, as a necessary incident to our redetermination of the disputed deficiency before us, the admissibility of evidence acquired under the rule 6(e) order. The Seventh Circuit, itself, acknowledged in Miller Brewing Co (p. 1092 n. 16) that "The applicability of grand jury secrecy and the admissibility of grand jury material as evidence are distinct inquiries” (emphasis supplied) and further recognized (pp. 1097-1098) that "the [TJax [CJourt, in passing upon the admissibility of evidence, has decided questions of Fourth Amendment law and claims of abuse of grand jury process. Ryan v. Commissioner, 568 F.2d 531, 538 n. 2 (7th Cir. 1977), cert, denied 439 U.S. 820 (1978). Its basic work — determining the correctness of deficiency assertions — cannot be accomplished in a vacuum. In order to properly interpret the applicable statutes, the court must resort to other bodies of law.” The Seventh Circuit therefore clearly recognizes this Court’s authority to determine issues concerning a rule 6(e) order in the context of passing upon the admissibility of evidence.
*318In Conforte, the Ninth Circuit Court of Appeals was presented with a situation substantially different than that presented here. The taxpayer in Conforte had actual knowledge of the granting of a rule 6(e) order at the time the order was issued, but did not seek to intervene in the District Court proceeding. In re Proceedings before the Federal Grand Jury for the District of Nevada, 643 F.2d 641, 642 (9th Cir. 1981). Instead, 5 days after the rule 6(e) order was entered, the taxpayer sought to appeal to the Ninth Circuit. The Ninth Circuit dismissed the appeal on the ground that the taxpayer, not having sought to become a party to the proceeding below, had no standing to appeal. In re Proceedings before the Federal Grand Jury for the District of Nevada, supra at 642-643.
Following the dismissal, respondent determined a deficiency in the taxpayer’s income taxes. The taxpayer petitioned this Court, and moved in this Court to suppress all the grand jury materials on the ground of grand jury abuse. This Court considered the motion, and denied it, but stated that the taxpayer could object on an item by item basis with respect to the admissibility of the grand jury materials. The taxpayer appealed. On appeal, the Ninth Circuit held that the taxpayer, having had knowledge of the prior rule 6(e) order at the time it was issued, and having failed to seek to intervene, had waived any right to challenge collaterally the validity of the order. Conforte v. Commissioner, supra. The court stated (692 F.2d at 594):
By failing to seek intervention in the district court or petitioning that court for relief from the disclosure order, [the taxpayer] gave up the opportunity to challenge directly the validity of the district court’s order. We hold she cannot do so collaterally before the Tax Court. * * *
The facts in Conforte are fundamentally different than those presented here. In this case, petitioner had no knowledge of the District Court’s rule 6(e) order until after disclosure had been accomplished, and the deficiency notice was issued. She therefore cannot be deemed to have waived any remedy which was available to her which might have prevented the disclosure from occurring. The primary holding of Conforte is therefore without effect in this case.
But respondent points out that, in the course of its opinion, the Ninth Circuit in Conforte stated (p. 594) that "[The *319taxpayer] has presented no authority for the proposition that the Tax Court, a court of limited jurisdiction * * * can review, even collaterally, the validity of an order of a United States district court.”
This statement of the Ninth Circuit was dictum and was not necessary to the court’s holding in Conforte. Accordingly, we do not consider ourselves bound by that language. Moreover, with respect, we feel that the statement was not well considered. As discussed supra, the fact that a determination of admissibility of evidence in this Court involves an inquiry into the propriety of actions of other Federal courts has never been thought to deprive this Court of jurisdiction to consider such admissibility. See Perillo v. Commissioner, 78 T.C. at 537-541; Nicholas v. Commissioner, supra at 1062-1063. Although we may be reluctant in certain situations to undertake a de novo review of discretionary actions of Federal District Courts as a general proposition, this reluctance is not premised upon jurisdictional concerns. (See discussion, infra) Finally, and most importantly in the context of this case, the Ninth Circuit’s dictum in Conforte simply has no applicability to this case, even if we were to assume it had validity. Petitioner here does not ask us to undertake a de novo review of the present rule 6(e) order under the jurisprudence as it existed at the time the order was issued. (This point is discussed, infra) Accordingly, respondent’s attempt to rely on this case must be rejected. We therefore hold that consideration of petitioner’s present motion falls within our jurisdictional limits.
B. Other Possible Impediments to Our Review
Of course, our conclusion on this jurisdictional point does not automatically render subject to attack in this Court every discovery or other order issued by a Federal court. In many cases, taxpayers will be bound by prior final orders or judgments under principles of res judicata, waiver, or collateral estoppel, and will therefore be precluded from contesting the validity of such prior orders or judgments in this Court. However, in this case, the rule 6(e) order of the District Court was issued ex parte, and without petitioner’s knowledge. Under these circumstances, respondent has no basis for invocation of res judicata, waiver, or collateral estoppel. Freuler v. Helvering, 291 U.S. 35, 43 (1934); cf. Commissioner v. *320Estate of Bosch, 387 U.S. 456, 462-463 (1967); Commissioner v. Sunnen, 333 U.S. 591, 597 (1948).
Moreover, if petitioner in this case were asking us to directly review de novo the validity of the District Court’s rule 6(e) order, we might in any event be reluctant to consider suppression arguments based solely upon allegations that the District Court applied improper standards of Federal statutory law in issuing the order, under the jurisprudence as it existed at the time the order was issued. See Estate of Temple v. Commissioner, 65 T.C. 776, 783 (1976). Such reluctance would not be premised upon any concerns that we lack jurisdictional capacity to consider the issue, however; rather, it would be based upon considerations of comity and judicial efficiency, combined with our recognition that this Court does not deal with "the institution of the grand jury with the frequency and expertise that a district court possesses,” Matter of Grand Jury Proceedings, Miller Brewing Co., 687 F.2d at 1098, and an acknowledgement that the Federal Rules of Criminal Procedure specifically make the District Courts the proper forum for applying for an order under rule 6(e). See rule 6(e)(3)(D), Fed. R. Crim. P. Under such circumstances, it might well be inappropriate for this Court to second guess a discretionary action of a District Court.
The classic statement of the principles of comity, as articulated by the Supreme Court in Mast, Foos & Co. v. Stover Mfg. Co., 177 U.S. 485, 488 (1900), is as follows:
Comity is not a rule of law, but one of practice, convenience, and expediency. It is something more than mere courtesy, which implies only deference to the opinion of others, since it has a substantial value in securing uniformity of decision, and discouraging repeated litigation of the same questions. But its obligation is not imperative. If it were, the indiscreet action of one court might become a precedent, increasing in weight with each successive adjudication, until the whole country was tied down to an unsound principle. Comity persuades; but it does not command. It declares not how a case shall be decided, but how it may with propriety be decided. It recognizes the fact that the primary duty of every court is to dispose of cases according to the law and the facts; in a word, to decide them right. In doing so, the judge is bound to determine them according to his own convictions. If he be clear in those convictions, he should follow them. It is only in cases where, in his own mind, there may be a doubt as to the soundness of his views that comity comes in play and suggests a uniformity of ruling to avoid confusion, until a higher court has settled the law. * * * [Emphasis supplied.]
*321However, the posture of this case does not require that we undertake de novo review of the District Court’s rule 6(e) order under the jurisprudence as it existed at the time the order was issued. Contrast Estate of Temple v. Commissioner, supra at 783. The Supreme Court, in Baggot and Sells Engineering, Inc., has now "settled the law” regarding the proper standards under which a District Court may legitimately exercise its discretionary authority to release grand jury information, and the only issue presented to this Court is whether the standards announced should be applied retroactively to invalidate a prior order, concededly not in compliance with such standards, which was issued without the benefit of the Supreme Court’s clarification of the law. In this posture, considerations of comity are simply inapplicable. Certainly, if the Supreme Court in Baggot and Sells had mandated that the rules announced therein were to be applied retroactively to invalidate all rule 6(e) orders, whether final or nonfinal, when those cases were decided, and which were previously issued in violation of those rules, it would be the duty of every Federal court to follow such a mandate, and not earlier contrary lower court decisions, under mistaken notions of comity. Cf. United States v. Contreras, 667 F.2d 976, 979 (11th Cir. 1982), cert. denied 459 U.S. 849 (1982).
The resolution of the retroactivity question, at least insofar as it applies to this case, was left unanswered by the Supreme Court, and we must therefore consider this issue for purposes of disposing of the present motion. Such an inquiry, because of its potential impact on the evidentiary and procedural questions in the case before us, is clearly within our province (Romanelli v. Commissioner, 54 T.C. 1448, 1461 (1970),6 revd. *322and remanded on other grounds 466 F.2d 872 (7th Cir. 1972)).7
II. Are the Rules of Baggot and Sells To Be Applied Retroactively?
The first question to be decided, then, is whether the Supreme Court’s decisions in Baggot and Sells Engineering, Inc., operate retroactively to invalidate the final order of the District Court, which was issued prior to the announcement by the Supreme Court of its decisions, and which was founded upon rule 6(e)(3)(C)(i), Fed. R. Crim. P. For the reasons that follow, we have concluded that Baggot and Sells Engineering, Inc., do not affect the validity of the rule 6(e) order in this case. We preface our consideration of this issue with an examination of the rule and judicial events leading up to the decisions in Baggot and Sells Engineering, Inc., as well as the holdings therein.
A. The Decisional Background
Rule 6(e)(2) incorporates the general rule that proceedings before a grand jury shall remain secret. The rule, as discussed by the Supreme Court in Baggot and Sells Engineering, Inc., without certain amendments effective as of August 1, 1983, reads as follows:
(e) Recording and Disclosure of Proceedings.
(2) General Rule of Secrecy. — A grand juror, an interpreter, a stenographer, an operator of a recording device, a typist who transcribes recorded testimony, an attorney for the government, or any person to whom disclosure is made under paragraph (3)(A)(ii) of this subdivision shall not *323disclose matters occurring before the grand jury, except as otherwise provided for in these rules. No obligation of secrecy may be imposed on any person except in accordance with this rule. A knowing violation of Rule 6 may be punished as a contempt of court.
The general rule of secrecy provided by rule 6(e)(2) is subject to certain exceptions provided in rule 6(e)(3). The only exception provided in rule 6(e)(3) which is of relevance in this case is the exception contained in rule 6(e)(3)(C)(i), which provides as follows:
(C) Disclosure otherwise prohibited by this rule of matters occurring before the grand jury may also be made—
(i) when so directed by a court preliminarily to or in connection with a judicial proceeding;
* * * * * * *
If the court orders disclosure of matters occurring before the grand jury, the disclosure shall be made in such manner, at such time, and under such conditions as the court may direct.
Prior to the Supreme Court’s announcement of its decisions in Baggot and Sells Engineering, Inc., the Government took the position that rule 6(e)(3)(C)(i) authorized judicially supervised disclosure of grand jury materials to the Internal Revenue Service for purposes of use in the audit process, prior to the time a deficiency notice was issued or litigation in respect of any civil tax determination was commenced. The Government also believed that no showing of "particularized need” was necessary prior to the issuance of an order under rule 6(e)(3)(C)(i). See Internal Revenue Manual sec. 4565-1:(4) (9/22/82). Thus, the Government interpreted the "preliminarily to * * * a judicial proceeding” requirement of rule 6(e)(3)(C)(i) as being satisfied at the audit stage of a civil tax investigation, reasoning that "legislative history reflects that * * * Rule 6(e) is not intended to preclude the use of grand jury developed evidence for civil law enforcement purposes.” I.R.M. sec. 4565.1:(4) (9/22/82).
The Government’s interpretation of the requirements of rule 6(e)(3)(C)(i), both with respect to its reading of the "preliminarily to” requirement, and with respect to its belief that no "particularized need” be demonstrated for a successful rule 6(e) motion by the Government, enjoyed initial judicial *324sanction. In In re December 1974 Term Grand Jury Investigation, 449 F. Supp. 743 (D. Md. 1978), the court, in the face of taxpayer contentions to the contrary, upheld the Government’s interpretation of the rule. With respect to the "in connection with or preliminarily to a judicial proceeding” requirement of the rule, the court stated (p. 750):
as long as the material to which disclosure is sought was obtained in a bona fide, good-faith grand jury proceeding directed toward ultimate criminal prosecution, there is no legitimate end to be served by requiring the government in a later civil action, or in connection with a prospective or existing later civil action, to again assemble and have produced testimony and documentary material which already exists by virtue of having been produced to the grand jury. [Fn. ref. omitted.]
With respect to the showing required for the issuance of an order under rule 6(e)(3)(C)(i) upon the Government’s motion, the court rejected the "particularized need” standard argued by the taxpayers, and stated (p. 751):
a general description of the materials sought to be disclosed should be provided [so that a court could determine whether those materials have] some rational connection with a specific existing or contemplated judicial proceeding as envisioned by * * * [the rule].
These same positions were subsequently adopted by two Circuit Courts of Appeals, and certiorari was denied in one such case by the Supreme Court. See In re Judge Elmo B. Hunter’s Special Grand Jury, 667 F.2d 724 (8th Cir. 1981); In re Grand Jury Subpoenas, April, 1978, at Baltimore, 581 F.2d 1103 (4th Cir. 1978), cert. denied sub nom. Fairchild Industries, Inc. v. Harvey, United States District Judge, 440 U.S. 971 (1979).
However, other courts which had considered these issues had reached contrary results. Addressing the issue whether the determination of deficiencies by the Internal Revenue Service were "preliminarily to or in connection with a judicial proceeding” within the intendment of rule 6(e)(3)(C)(i), two District Courts in the Sixth Circuit concluded that such a process was purely administrative and therefore did not satisfy the requisites of rule 6(e)(3)(C)(i) for court-ordered disclosure. The Government’s motions under rule 6(e) were accordingly denied. See In re April 1977 Grand Jury Proceed*325ings, 506 F. Supp. 1174 (E.D. Mich. 1981); In re 1978-1980 Grand Jury Proceedings, 503 F. Supp. 47 (N.D. Ohio 1980).
Prior to the respective Courts of Appeals opinions in Baggot and Sells Engineering, Inc., no Court of Appeals had specifically adopted the approach of the two District Courts in the Sixth Circuit in the context of rule 6(e) disclosure motions.8 However, certain courts did, prior to the Supreme Court’s decision in Sells Engineering, Inc., require a demonstration by the Government of a higher standard of particularized need than that adopted by the Eighth and Fourth Circuits in the decisions cited supra. See Matter of Grand Jury Proceedings, Miller Brewing Co., supra; In re U.S. Order Pursuant to Provisions of Rule 6(e), 505 F. Supp. 25 (W.D. Pa. 1980).
Thus, when the issues, (a) whether a civil tax audit was "preliminarily to a judicial proceeding” within the intendment of rule 6(e)(3)(C)(i), and (b) whether the Government was required to demonstrate "particularized need” for the grand jury material requested prior to the granting of a motion under that rule, were presented to the Seventh Circuit Court of Appeals in Baggot and the Ninth Circuit Court of Appeals in Sells Engineering, Inc., respectively, the state of the law concerning these issues was divided and unsettled among the circuits and lower courts, and, of course, the Supreme Court had not previously undertaken to resolve either of these issues.9 Indeed the evolution of these cases demonstrates *326differences of opinion even within the circuits that decided them.
In Baggot, a Federal grand jury had been empaneled under the jurisdiction of the District Court for the Northern District of Illinois to investigate certain criminal violations of the Commodities Exchange Act and the Internal Revenue Code, and James E. Baggot ultimately became a target of such investigation and was subpoenaed to appear before the grand jhry. On June 24, 1972, James Baggot pleaded guilty to two misdemeanor violations of the Commodities Exchange Act. Subsequently, the U.S. attorney filed a motion in the District Court under rule 6(e)(3)(C)(i), Fed. R. Crim. P., for a disclosure order relating to materials and transcripts of the grand jury for purposes of use by the Internal Revenue Service in a civil tax audit of James Baggot. The District Court, although holding that a civil tax investigation was not "preliminarily to or in connection with a judicial proceeding,” nevertheless granted disclosure of the grand jury materials pursuant to its "general supervisory powers” over the grand jury. The order was appealed to the Seventh Circuit.
A divided Seventh Circuit Court of Appeals reversed the District Court’s disposition of the rule 6(e) motion. See In re Special February, 1975 Grand Jury (Baggot), 662 F.2d 1232 (7th Cir. 1981). The court first rejected the District Court’s reliance upon its "general supervisory powers” in granting the rule 6(e) motion. Additionally, the court held that disclosure of the grand jury materials to the Internal Revenue Service for use in its conduct of a civil tax audit did not satisfy the requirements of rule 6(e) (3)(C)(i), because such a disclosure would not be directed "preliminarily to or in connection with a judicial proceeding” as required by the rule. The court stated (pp. 1238-1239):
the present Internal Revenue Service civil investigation of Baggot’s possible additional tax liabilities is too embryonic, speculative, and uncertain to firmly say that it is "preliminarily to” a judicial proceeding. [Citation omitted.]
*327The Internal Revenue Service sought certiorari, and it was granted 457 U.S. 1131 (1982).
On June 30,1983, the Supreme Court released its opinion in Baggot holding that an Internal Revenue Service civil tax audit is not conducted "preliminarily to or in connection with a judicial proceeding” within the meaning of rule 6(e)(3)(C)(i), and therefore no disclosure of grand jury materials is permitted for such purposes under the rule. The majority in Baggot stated (463 U.S. at_):
the Rule contemplates only uses related fairly directly to some identifiable litigation, pending or anticipated. Thus, it is not enough to show that some litigation may emerge from the matter in which the material is to be used, or even that litigation is factually likely to emerge. The focus is on the actual use to be made of the material. If the primary purpose of disclosure is not to assist in preparation or conduct of a judicial proceeding, disclosure under (C)(i) is not permitted. [Citation omitted; emphasis in original.]
In Sells Engineering, Inc., a grand jury was empaneled to investigate whether Sells Engineering, Inc., and certain of its officers should be prosecuted for an alleged scheme to defraud the Government by underpaying taxes. As the result of the grand jury investigation, the officers ultimately pleaded guilty to one count of conspiracy to defraud and all other charges were dismissed pursuant to plea bargaining.
In the interim, the Civil Division of the Justice Department moved in the District Court for an order releasing the grand jury’s transcripts for purposes of determining whether cause existed to file suit against Sells Engineering, Inc., under the False Claims Act, 31 U.S.C. sec. 231 et seq., for its alleged use of inflated costs in negotiated contracts. This motion was made pursuant to rule 6(e)(3)(A)(i). This subsection of rule 6(e) allows disclosure of grand jury materials as a matter of course, without any court order, to "an attorney for the government for use in the performance of such attorney’s duty.” The District Court granted the Government’s motion, concluding that attorneys in the Civil Division were entitled to disclosure as a matter of right under rule 6(e)(3)(A)(i). Sells Engineering, Inc., appealed.
The Ninth Circuit rejected the holding of the District Court that Civil Division attorneys could obtain access to grand jury materials as a matter of right under rule 6(e)(3)(A)(i), warning that such disclosure would encourage the use of the grand jury *328as a "tool of civil discovery.” See In re Grand Jury Investigation No. 78-184 (Sells, Inc.), 642 F.2d 1184,1190 (9th Cir. 1981). The court held that grand jury disclosure could be made to Civil Division attorneys only pursuant to court direction under rule 6(e)(3)(C)(i). Moreover, the court ruled that, even where the Government is the moving party under rule 6(e)(3)(C)(i), release of such materials by the court could be made only upon a showing by the Government of "particularized need” for the materials. The court thus adopted the "particularized need” standard with respect to Government movants, although that standard had theretofore been specifically adopted by the Supreme Court only with respect to private litigants. See Douglas Oil Co. v. Petrol Stops Northwest, 441 U.S. 211 (1979), in note 9 supra.
The Government petitioned for certiorari in the Supreme Court, and it was granted. 456 U.S. 960 (1982). The Supreme Court affirmed the Ninth Circuit, holding that disclosure of grand jury materials under rule 6(e)(3)(A)(i) is "limited to use by those attorneys who conduct the criminal matters to which the materials pertain.” See 463 U.S. at_. Thus, the release of grand jury materials to Civil Division attorneys for purposes of prosecuting civil claims could be made only upon application to a court pursuant to rule 6(e)(3)(C)(i).
In its opinion which has more direct relevance to the present case, the Court additionally held that even where the Government is the moving party under rule 6(e)(3)(C)(i), a "strong showing of particularized need for grand jury materials” is required before the release of any grand jury materials will be permitted. United States v. Sells Engineering, Inc., 463 U.S. at _. The Court thus adopted the Seventh Circuit view, and imposed the same standards for disclosure under rule 6(e)(3)(C)(i) that it had theretofore applied only with respect to private litigants in Douglas Oil Co. v. Petrol Stops Northwest, supra. In reaching this conclusion, the Court emphasized the general purposes and policies of grand jury secrecy mandating this result, and stated that—
if we were to agree with the Government that disclosure is permissible if the grand jury materials are "relevant to matters within the duties of the attorneys for the government,” * * * a (C)(i) court order would be a virtual rubber stamp for the Government’s assertion that it desires disclosure. [463 U.S. at_.]
*329The Court emphasized, however, that where the Government is the movant, different considerations exist than where a private party is the movant. The Court stated (463 U.S. at _):
The Douglas Oil standard is a highly flexible one, adaptable to different circumstances and sensitive to the fact that the requirements of secrecy are greater in some situations than in others. * * * For example, a district court might reasonably consider that disclosure to Justice Department attorneys poses less risk of further leakage or improper use than would disclosure to private parties or the general public. Similarly, we are informed that it is the usual policy of the Justice Department not to seek civil use of grand jury materials until the criminal aspect of the matter is closed. Cf. Douglas Oil, 441 U.S. at 222-223. And "under the particularized need standard, the district court may weigh the public interest, if any, served by disclosure to a governmental body * * *” [Citations omitted.]
Analysis of the Supreme Court’s holdings in Baggot and Sells Engineering, Inc., makes it clear that the rule 6(e) order herein does not satisfy the criteria announced in those cases. The Baggot standard was not satisfied because the order, when issued, was not issued " in connection with or preliminarily to a judicial proceeding,” and respondent has conceded as much in this case. Moreover, it is clear that the District Court did not require the Government to demonstrate "particularized need” for the grand jury materials prior to issuing the order. Accordingly, the Sells Engineering, Inc., standard was not satisfied. The question we must decide is whether Baggot and Sells Engineering, Inc., apply retroactively to invalidate the rule 6(e) order. If so, we must then decide whether the relief sought by petitioner in the present motion is appropriate in the circumstances.
B. The Rules of Retroactivity
Retroactive application of a Supreme Court decision is not compelled, constitutionally or otherwise. Great Northern R. Co. v. Sunburst Oil & Refining Co., 287 U.S. 358, 364 (1932). The Supreme Court has long recognized that "the interests of justice” and "the exigencies of the situation” may argue against imposing a new decision retroactively, whether the new rule is of constitutional or nonconstitutional dimensions. Linkletter v. Walker, 381 U.S. 618, 628 (1965); Halliday v. United States, 394 U.S. 831, 832 (1969).
*330The basic principles of retroactivity in civil10 cases were established by the Supreme Court in Chevron Oil Co. v. Huson, 404 U.S. 97 (1971). The criteria guiding resolution of the retroactivity question were stated as follows:
First, the decision to be applied nonretroactively must establish a new principle of law, either by overruling clear past precedent on which litigants may have relied, or by deciding an issue of first impression whose resolution was not clearly foreshadowed. Second, it has been stressed that "we must * * * weigh the merits and demerits in each case by looking to the prior history of the rule in question, its purpose and effect, and whether retrospective operation will further or retard its operation.” Finally, we have weighed the inequity imposed by retroactive application, for "[wjhere a decision of this Court could produce substantial inequitable results if applied retroactively, there is ample basis in our cases for avoiding the 'injustice or hardship’ by a holding of nonretroactivity.” [404 U.S. at 106-107; citations omitted.]
Examining Baggot and Sells Engineering, Inc., in light of the above factors,11 we conclude that the standards of those cases should not be applied retroactively to invalidate the final rule 6(e) order herein, on collateral attack.12
*331The first and threshold inquiry under Chevron Oil is whether the pertinent holdings of the Supreme Court in Baggot and Sells Engineering, Inc., established a new principle of law, either by overruling clear Supreme Court precedent, or by deciding an issue of first impression in the Supreme Court13 whose resolution was not clearly foreshadowed by prior Supreme Court cases. The ultimate question, to which our analysis of this factor is directed, is whether enforcement authorities and courts have justifiably relied on the prior interpretation of rule 6(e) which was different from that announced in Baggot and Sells Engineering, Inc. Solem v. Stumes, 465 U.S. _ (1984).
It is clear that the Supreme Court’s decisions in Baggot and Sells Engineering, Inc., did not overrule prior Supreme Court precedent in deciding the "preliminarily to or in connection with a judicial proceeding” issue or the "particularized need” issue. Both of these issues were issues of first impression in the Court. Nor did these decisions overrule a near-unanimous body of lower-court case law on these issues. Thus, Baggot and Sells Engineering, Inc., are not the types of cases that have been held by the Supreme Court to be "almost automatically nonretroactive.” Solem v. Stumes, supra at_.
Nevertheless, the pertinent holdings in Baggot and Sells Engineering, Inc., did establish new rules. Thus the Court in Baggot stated (463 U.S. at_):
*332in our previous cases under Rule 6(e), we have not had occasion to address [the "preliminarily to or in connection with a judicial proceeding”] * * * requirement in detail, focusing instead on the requirement that the moving party show particularized need for access to grand jury materials. The two requirements, though related in some ways, are independent prerequisites to (C)(1) disclosure. [Citations and fn. ref. omitted.]
Moreover, although the Court had previously decided in Douglas Oil Co. v. Petrol Stops Northwest, supra, that private parties seeking access to grand jury materials under rule 6(e)(3)(C)(i) must demonstrate "particularized need” for the materials, no such standard had been imposed in Supreme Court cases prior to Sells Engineering, Inc., when the information was sought by the Government for use in a civil tax investigation (United States v. Sells Engineering, Inc., supra at _).14
Thus, the inquiry cannot end upon a finding that Baggot and Sells Engineering, Inc., did not overrule clear past Supreme Court or lower court precedent. The issues were clearly ones of first impression in the Supreme Court and we must therefore additionally consider whether the new rules announced in these cases were "clearly foreshadowed” within the intendment of Chevron Oil.
Whether the new rules announced in Baggot and Sells Engineering, Inc., were "clearly foreshadowed” depends upon whether the rulings in those cases were "necessary consequences” of prior Supreme Court rulings. See Solem v. Stumes, supra at .
We think it clear that the rule announced by the Supreme Court in Baggot was not a necessary consequence of any prior Supreme Court decision. Indeed, as indicated above, the Supreme Court in Baggot itself acknowledged that it did not have prior occasion to consider the issue resolved therein. See 463 U.S. _.
Nor do we think that the pertinent holding in Sells Engineering, Inc., was a necessary consequence of prior Supreme Court decisions. It is true that, prior to its decision in Sells Engineering, Inc., and prior to the issuance of the rule 6(e) *333order herein, the Supreme Court in Douglas Oil Co. decided that a private litigant could obtain a rule 6(e) disclosure of grand jury materials only upon a showing of "particularized need.” But the Court in that case carefully framed the question presented solely as: "[W]hat justification * * * must a private party show in order to overcome the presumption of grand jury secrecy?” (441 U.S. at 213; emphasis added), and the ultimate holding in that case responded directly to this formulation of the issue. Thus, District Courts, when considering a private party’s request for grand jury disclosure, were instructed to weigh "the public interest in secrecy” against the private interest in disclosure, and to place the burden on the "private party” to justify disclosure. 441 U.S. at 223. But where the disclosure of grand jury materials is sought by the Government in furtherance of its public duty, the interests to be considered against grand jury secrecy are public rather than private. Moreover, the Supreme Court, itself, acknowledged in Sells Engineering, Inc. (463 U.S. at _) that "disclosure to [Government] attorneys poses less risk of further leakage * * * than would disclosure to private parties or the general public.”
Under these circumstances, we do not think that it can be said that the pertinent holding of the Supreme Court in Sells Engineering, Inc., was a necessary consequence to its prior holding in Douglas Oil Co., or other prior holdings dealing exclusively with private movants under rule 6(e). See Dennis v. United States, 384 U.S. 855 (1966); Pittsburgh Plate Glass Co. v. United States, 360 U.S. 395 (1959); United States v. Procter & Gamble, 356 U.S. 677 (1958). Accordingly, we find that the relevant holding in Sells Engineering, Inc., was not "clearly foreshadowed” within the intendment of Chevron Oil Co., and the unsettled state of the law in the lower courts with respect to both of the relevant issues decided in Baggot and Sells Engineering, Inc., bears out this reality. See also Solem v. Stumes, 465 U.S. at_. Thus, it could be justifiably believed at the time the rule 6(e) order in this case was issued, that such order could legitimately be issued incident to a civil tax audit, and without requiring a showing of "particularized need,” and it appears that both the Government and the District Court acted in that belief.
*334We must next consider whether the purposes of the new rules weigh in favor of their complete retroactive application. Complete retroactive effect of a new rule is most appropriate where the new rule is designed to enhance the accuracy of trials. Cf. Solem v. Stumes, supra at_; Williams v. United States, 401 U.S. 646, 653 & n. 6 (1971). The announced purposes of the new rules in Baggot and Sells Engineering, Inc., are to protect against abuses of grand jury secrecy and use of the grand jury as a tool for civil discovery. United States v. Sells Engineering, Inc., supra at _. The rules are therefore prophylactic in nature and are not designed to enhance the reliability of the factfinding function. The fact that Internal Revenue Service personnel secured access to grand jury information prior to the institution of civil proceedings and without demonstrating particularized need, does not, of itself, call into question the accuracy of the materials acquired. The Supreme Court has not applied such decisions retroactively. Michigan v. Payne, 412 U.S. 47 (1973); Halliday v. United States, supra.
Moreover, the protection of grand jury secrecy sought to be achieved by application of the new rules would not be furthered by the result petitioner contends for here. Petitioner argues that the retroactive application of these rules will ultimately serve to invalidate respondent’s prior use of such information in preparing the deficiency notice herein, with all the procedural consequences stemming therefrom. However, respondent’s use of the grand jury materials in preparing the deficiency notice has already occurred, and retroactive application of the new rules, and petitioner’s proposed results, could not serve to restore the grand jury secrecy which has already been lost. See Estate of Temple v. Commissioner, supra at 783. We therefore conclude that retroactive application of the pertinent rules announced in Baggot and Sells Engineering, Inc., would not beneficially affect the accuracy of the trial in this case or substantially further the intended purposes of the new rules.
Finally, it is clear that the complete retroactive application of the new rules announced in Baggot and Sells Engineering, Inc., would have a disruptive effect on the administration of justice. Such a conclusion would render every rule 6(e) order issued prior to Baggot and Sells Engineering, Inc., subject to *335collateral attack, and some inquiry would be required in each case to assess the substance of the claim as well as the requested remedy. Moreover, we think it would be somewhat inequitable to hold that respondent’s actions in receiving and using the grand jury materials were improper, although the materials were received by him in good-faith reliance on a District Court order, issued upon full disclosure of all the facts, at a time when he could not have known the additional limitations the law would ultimately impose. Cf. Solem v. Stumes, supra.15
We therefore hold that the decisions of the Supreme Court in Baggot and Sells Engineering, Inc., to the extent relevant herein, are not to be applied retroactively to invalidate final rule 6(e) orders under collateral attack in this Court.
Both parties herein appear to agree that a finding of nonretroactivity, in and of itself, disposes of petitioner’s contention that the grand jury materials should be suppressed in these proceedings. The parties are, of course, correct. The underlying ground advanced by petitioner in support of her suppression motion is that the judicially created exclusionary rule should operate in this case to require suppression of the grand jury materials. However, imposition of the suppression sanction, under well-established exclusionary rule doctrine, is premised upon, inter alia, a finding that the evidence sought to be suppressed was obtained in violation of a specific coiistitu-tional right (see, e.g., Weeks v. United States, 232 U.S. 383 (1914)), or an identifiable statutory mandate (see United States v. Blue, 384 U.S. 251 (1966)). Where, as in this case, evidence has been acquired by Federal Government officials in good-faith reliance upon a final order of a court which was issued under standards later determined by the Supreme Court to be in violation of statutory requirements, a finding that the subsequently announced rules are not to be applied retroactively, effectively creates a legal fiction that the evidence in question was not illegally obtained. See, e.g., United States v. *336Peltier, 422 U.S. 531 (1975); Solem v. Stumes, supra', note 12 supra. If the evidence at issue was "legally” obtained, the exclusionary rule is, by definition, simply inapplicable. The nonretroactivity precedent in the Supreme Court thus operates to avoid frustrating reasonable reliance on prior interpretations of statutes or the Constitution (a precondition to a finding of nonretroactivity, see text following note 13 supra) which might otherwise occur when a new rule is announced.16
In this case, therefore, our holding that the Supreme Court’s decisions in Baggot and Sells Engineering, Inc., are not to be applied retroactively means that petitioner’s reliance on the exclusionary rule as the underlying basis of her suppression motion must be rejected. Accordingly, we will deny petitioner’s present motion — to suppress evidence and shift the burden of going forward — on this ground alone. However, recent developments in exclusionary rule law make it clear that, at least under the facts of this case, it would be inappropriate to apply the rule even if we were to assume that the grand jury materials were obtained by respondent illegally.
III. The Exclusionary Rule
The Supreme Court has long recognized that the exclusion of highly probative, albeit illegally obtained evidence, imposes substantial costs on society and is not mandated constitutionally or otherwise. Andresen v. Maryland, 427 U.S. 463 (1976); Stone v. Powell, 428 U.S. 465 (1976). Rather, the rule is "a judicially created remedy designed to safeguard * * * rights generally through its deterrent effect, rather than a personal constitutional right of the party aggrieved.” United States v. Calandra, 414 U.S. 338, 348 (1974). Thus, the primary if not the sole purpose of the rule is to deter future unlawful conduct, rather than to cure the invasion of a personal right of an individual, and application of the rule in any particular case must be determined in light of this purpose. If application of the exclusionary rule in a particular case will not "result in appreciable deterrence, then, clearly, its use * * * is unwarranted.” United States v. Janis, 428 U.S. 433, 454 (1976).
*337In considering whether the requisite deterrent effect will be accomplished by application of the exclusionary rule, it is necessary first to determine those individuals whose behavior the rule is intended to affect, as well as the qualitative type of behavior which is the proper focus of the rule. "As with any remedial device, the application of the rule has been restricted to those areas where its remedial objectives are thought most efficaciously served.” United States v. Calandra, supra at 348; United States v. Janis, supra at 447.
The Supreme Court recently specifically delineated the category of individuals whose behavior the exclusionary rule is intended to affect, and generally limited the scope of the rule, in United States v. Leon, 468 U.S. _ (1984), and its companion case, Massachusetts v. Sheppard, 468 U.S. _ (1984). These cases make it clear that application of the rule in this case would not "efficaciously serve” the remedial objectives of the rule, and exclusion of the grand jury materials in this case is therefore unwarranted.
In Leon, after initiating a drug-trafficking investigation involving surveillance of the defendant’s activities, a police officer prepared an application for a warrant to search three residences and the defendant’s automobiles for numerous items. The warrant application was reviewed by several district attorneys, and was then submitted to a State court judge. After reviewing the application, the State court judge issued the requested warrant, and the ensuing searches. pursuant thereto produced large quantities of drugs and other evidence. The defendants were then indicted for Federal drug offenses and, in a Federal District Court, filed motions to suppress the evidence that was seized pursuant to the warrant. After a hearing on the motions, the District Court granted the motions in part on the ground that the warrant was issued by the State court judge without probable cause. Although the District Court recognized that the warrant application was made by the police officer in good faith, the court held that the evidence should nevertheless be suppressed. The Court of Appeals for the Ninth Circuit affirmed the District Court’s holding. The Supreme Court granted certiorari solely to consider the question whether the exclusionary rule "should be modified so as not to bar the admission of evidence seized in reasonable, good faith reliance on a search warrant that is *338subsequently held to be defective.” United States v. Leon, supra at _.
In considering this issue, the Supreme Court first recognized that whether the exclusionary sanction is appropriately applied in any given case is a separate issue from whether the rights of the party seeking to invoke the rule were violated. United States v. Leon, supra. The Supreme Court has on many occasions refused to hold that illegally obtained evidence must always be excluded. See, e.g., United States v. Janis, supra; United States v. Calandra, supra; Alderman v. United States, 394 U.S. 165 (1969). Moreover, the Court reiterated the well-established proposition that the predominant, and even the sole justification for the exclusionary rule is the deterrent effect that suppression would have on future unlawful conduct and stated that since the exclusion of highly probative evidence at trial imposes substántial costs on society, application of the rule in a particular case could only be justified if it would result in "appreciable deterrence.” United States v. Leon, supra at_, citing United States v. Janis, supra at 454.
Against the above backdrop, the Court in Leon went on to consider whether the deterrent purpose of the exclusionary rule would be served by suppression of the evidence under the facts presented. Based upon the Court’s evaluation of the costs and benefits of suppressing reliable evidence seized by officers in reasonable reliance on a warrant issued by a detached and neutral magistrate, the Court concluded that such evidence should be admissible in the prosecution’s case in chief. United States v. Leon, supra at _.
In reaching this conclusion, the Court rejected the notion that the exclusion of evidence could be justified by the effect that such exclusion would potentially have on future behavior of magistrates and judges. The Court stated (468 U.S. at_):
To the extent that proponents of exclusion rely on its behavioral effects on judges and magistrates in these areas, their reliance is misplaced. First, the exclusionary rule is designed to deter police misconduct rather than to punish the errors of judges and magistrates. Second, there exists no evidence suggesting that judges and magistrates are inclined to ignore or subvert the Fourth Amendment or that lawlessness among these actors requires application of the extreme sanction of exclusion.
Third, and more important, we discern no basis, .and are offered none, for believing that exclusion of evidence seized pursuant to a warrant will have a significant deterrent effect upon the issuing judge or magistrate. * * * *339Judges and magistrates are not adjuncts to the law enforcement team; as neutral judicial officers, they have no stake in the outcome of particular criminal prosecutions. The threat of exclusion thus cannot be expected significantly to deter them. Imposition of the exclusionary sanction is not necessary meaningfully to inform judicial officers of their errors, and we cannot conclude that admitting evidence obtained pursuant to a warrant while at the same time declaring that the warrant was somehow defective will in any way reduce judicial officers’ professional incentives to comply with the Fourth Amendment, encourage them to repeat .their mistakes, or lead to the granting of all colorable warrant requests. [Fn. refs, omitted.]
Under these circumstances, the Court found that the purpose underlying the exclusionary rule would not be appreciably served by suppression. The Court rejected the contention that applying the exclusionary rule in such cases might tend to deter enforcement officials from future inadequate warrant requests or at least encourage such officers to more closely scrutinize the form of the warrant and point out suspected judicial errors, finding such contentions "speculative.” United States v. Leon, supra at_. In cases where the acquisition of evidence is preconditioned on an application to a judicial officer, the enforcement authority can do no more than submit the application, exercising reasonable and objective good faith. It then becomes, the Court stated (468 U.S. at_)—
the magistrate’s responsibility to determine whether the officer’s allegations establish probable cause and, if so, to issue a warrant comporting in form with the requirement of the Fourth Amendment. In an ordinary case, the officer cannot be expected to question the magistrate’s probable-cause determination or his judgment that the form of the warrant is technically sufficient. * * * Penalizing the officer for the magistrate’s error, rather than his own, cannot logically contribute to the deterrence of Fourth Amendment violations. [Citation and fn. ref. omitted.]
In light of the above considerations, the Court adopted a "good faith” exception to the exclusionary rule, concluding (468 U.S. at_)—
that the marginal or nonexistent benefits produced by suppressing evidence obtained in objectively reasonable reliance on a subsequently invalidated search warrant cannot justify the substantial costs of exclusion. * * *
In so holding, the Court acknowledged that exclusion may not always be inappropriate in cases where evidence has been obtained pursuant to a court-issued warrant. The ultimate inquiry is whether or not the law enforcement officer has *340acted in reasonable and objective good faith. As stated by the Court in Leon (468 U.S. at_):
Suppression therefore remains an appropriate remedy if the magistrate or judge in issuing a warrant was misled by information in an affidavit that the affiant knew was false or would have known was false except for his reckless disregard of the truth. * * * The exception we recognize today will also not apply in cases where the issuing magistrate wholly abandoned his judicial role * * *; in such circumstances, no reasonably well-trained officer should rely on the warrant. Nor would an officer manifest objective good faith in relying on a warrant based on an affidavit "so lacking in indicia of probable cause as to render official belief in its existence entirely unreasonable.” * * * Finally, depending on the circumstances of the particular case, a warrant may be so facially deficient — i.e., in failing to particularize the place to be searched or the things to be seized — that the executing officers cannot reasonably presume it to be valid. * * * [Citations omitted.]
Upon review of the Supreme Court’s analysis of the exclusionary rule in Leon, we must conclude that, in the context of this case, petitioner’s requested remedy is unavailable to her. The Supreme Court’s articulation of the "good faith” exception to the rule makes it clear that application of the rule in this case would be inappropriate, whether or not the rule 6(e) order herein was improvidently granted.
As fully discussed above, in determining whether the exclusionary rule is to be applied in a particular case, the proper focus is the effect that application of the rule would have on future conduct of law enforcement officers, not judicial officers. United States v. Leon, 468 U.S. at_. Accordingly, only if exclusion of the grand jury materials in this case would operate as a substantial deterrent to future unlawful conduct by Government attorneys, would such sanction be appropriate.
We have no reason to doubt that the Government attorneys in this case were acting in good faith when they petitioned the District Court for the rule 6(e) order herein. The motion itself fully disclosed the relevant facts when it was presented to the District Court judge for his consideration. Moreover, in light of the state of the law regarding rule 6(e) disclosure determinations at the time the order in this case was issued (discussed fully in subsection II supra), we are unwilling to conclude that the Government officers in this case were dishonest or reckless in preparing the rule 6(e) motion herein, or could have harbored an objectively reasonable belief that the standards under which the rule 6(e) order was issued were not in *341compliance with the law. See United States v. Leon, 468 U.S. at _. Certainly we cannot say that no reasonably well-trained Government attorney should have relied on the rule 6(e) disclosure order herein.
The Government’s receipt of the grand jury materials in reliance upon the rule 6(e) order was therefore in good faith and objectively reasonable, and under the analysis adopted by the Supreme Court in United States v. Leon, supra, suppression of the materials in this case would therefore not appreciably serve the deterrent purpose of the exclusionary rule.
Accordingly, even if we had to directly address the issue of the exclusionary rule in this case, we would not apply the sanction here.17
An appropriate order will be entered.
Reviewed by the Court.
Dawson, Sterrett, Wiles, Nims, Parker, Hamblen, Swift, and Jacobs, JJ, agree with this opinion.
Cohen, J., concurs in the result only.
Gerber, J., did not participate in the consideration of this case.