In this appeal from the denial of a habeas corpus petition,1 the issue is whether to apply the rule of United States ex rel. Pugh v. Pate, 401 F.2d 6 (7th Cir. 1968), cert. denied, 394 U.S. 999, 89 S. Ct. 1590, 22 L.Ed.2d 777 (1969). This court held in Pugh that the use of a fictitious name on an affidavit for a search warrant invalidates the warrant.
Petitioner was convicted by an Illinois court in 1964 of possession of heroin and marijuana. Most of the evidence against him was seized during the search of two apartments on September 24, 1963. The warrants for the searches were obtained on the basis of two affidavits signed by “Albert Jones,” which turned out to be the pseudonym of a paid informer. The affidavits were identical except for the addresses; the informer recited that he had purchased heroin from petitioner on the previous day, and that petitioner occupied the apartment at each address.
Since the search preceded the Pugh case by five years, our task is to decide whether Pugh was the unexpressed rule in this circuit in 1963; and, if it was not, whether we should apply Pugh retroactively.
Petitioner contends that Pugh did not announce a new rule for this circuit, that it merely applied federal principles which had been established before 1963. The only pre-1963 Supreme Court case petitioner cites deals with the requirement that an affidavit must set forth sufficient facts for the magistrate to be able to make an independent judgment whether probable cause exists for issuance of a warrant. Giordenello v. United States, 357 U.S. 480, 78 S.Ct. 1245, 2 L.Ed.2d 1503 (1958). Giordenello, like United States v. Pearce, 275 F.2d 318 (7th Cir. 1960), was concerned with the personal knowledge of the affiant, not with his identity.
Petitioner says King v. United States, 282 F.2d 398 (4th Cir. 1960), the case relied on by the Pugh court, foreshadowed Pugh and established the standard for Illinois courts. Aside from the obvious obstacle that King was a Fourth Circuit case, it was not clear before Pugh that King would apply to state cases. King was an appeal from a federal conviction. The Fourth Circuit noted (at 400 n. 4) that “perhaps” the majority of states do not allow a challenge to the truthfulness of facts alleged by the affiant.2 And the decision rested on Rule 41(c), Fed.R.Crim.P., as well as on the Fourth Amendment.
We conclude that Pugh established a new standard for this circuit, and that we must decide whether it applies retroactively to the 1963 search.
Because the Pugh rule was announced in a state habeas corpus case, petitioner theorizes that the rule is automatically retroactive. The court did apply the rule retroactively by vacating Pugh’s conviction in his collateral attack. Presumably the proposed theory relies on the notion that equal protection for all state habeas corpus petitioners requires full retroactivity of the case.
We reject this argument because of our agreement with the Ninth Circuit in *1383Castro v. United States, 396 F.2d 345, 349 (1968) :
If the appellate court concludes in a collateral proceeding that there was a substantial impropriety in the * * * procedure, it is appropriate to give the applicant the benefit of the ruling. This is dictated not only by the requirement of Article III of the Constitution that we resolve issues solely in concrete cases or controversies, but also by the fact that, otherwise, counsel would have less incentiye to advance contentions requiring a change in the law. * * *
But the fact that, for these reasons, the applicant who first raises the point receives the benefit of the new ruling, does not preclude the court from giving the ruling only prospective application as to others. The seeming inequity in fixing such a cut-off date is outbalanced by the factors of reliance and burden on the administration of justice which argue for prospective application only in other cases.
And see Schmear v. Gagnon, 896 F.2d 786 (7th Cir. 1968), cert. denied, 395 U. S. 978, 89 S.Ct. 2125, 23 L.Ed.2d 767 (1969).
The fact that many new Supreme Court rulings in habeas corpus cases have been held retroactive is, in our opinion, more a coincidence than a command.3
Rather than deciding retroactivity by the direct or collateral nature of the case, we prefer to use the standards enunciated by the Supreme Court and the courts of appeals.4
The most recent Supreme Court discussion of retroactivity in cases involving the exclusionary rule is found in Williams v. United States, 401 U.S. 646, 91 S.Ct. 1148, 28 L.Ed.2d 388 (1971). The Court notes that new standards under the Fourth Amendment5 have been promulgated to deter police invasions of individual privacy, not to improve the accuracy of fact-finding at a criminal trial. Because the new standards did not affect the reliability and probity of the evidence illegally seized, the Court applied the new cases prospectively *1384only.6 The Pugh rule, excluding evidence seized under a warrant obtained with a fictitious signature, clearly falls into the same category as other Fourth Amendment cases. It does not apply to searches before July 1, 1968.7
Petitioner argues that Pugh should apply to his case because the use of a fictitious name on the affidavits affected the fact-finding process. This tenuous proposition is built on the dispute at trial between police officers and petitioner as to control of the premises searched. Petitioner says if the jury had known that the officers had perjured themselves about “Albert Jones,” they might have resolved the factual dispute against the discredited police. Given the common use of aliases to protect informers, it is highly speculative that such a relatively inconsequential misrepresentation would have affected the jury’s decision on credibility.
The police who searched the two apartments were relying on Illinois law that they could withhold the identity of the informer who signed the search warrant affidavit. People v. Mack, 12 Ill.2d 151, 145 N.E.2d 609 (1957). The evidence seized was reliable and sufficient to convict petitioner. We therefore affirm the denial of his petition for a writ of habeas corpus.
The other issues raised in petitioner’s brief were not presented in the habeas corpus petition and so are not properly before us.
Affirmed.