OPINION
FACTS
On November 6, 1992, the dead body of Eladio Laude was discovered in the Dandan homestead area of Saipan. Police *465investigation gathered sufficient information to establish probable cause that the deceased was a victim- of homicide and that Joseph A. Bowie ("Bowie") actively participated in the commission of the homicide.1 The same day, Officer Joseph H. Aldan signed an affidavit of probable cause in support of the issuance of an arrest warrant. Although the affidavit states that it was executed upon "first being duly sworn," it was not notarized.
At 1:45 a.m. on November 7, 1992, Officer Aldan presented the affidavit to Judge Alex C. Castro and requested the issuance of a warrant for the arrest of Bowie. Judge Castro asked the Officer to affirm whether the statements contained in the affidavit were correct and the Officer responded in the affirmative. Judge Castro then issued the arrest warrant. The same morning, at 6:39 a.m., Officer Aldan went to the house of Bowie and knocked on the door. When Bowie came to the door, he.was arrested and has been held in custody since.
At the time of the arrest, no criminal information had been filed in court against Bowie. The information charging Bowie with the crimes of first degree murder, kidnapping, robbery, and assault and battery was filed on November 9, 1992.
PROCEEDINGS BELOW
The defendant, Bowie, through counsel, moved to quash the arrest warrant and for release from custody on the ground that the *466arrest warrant was invalid. The trial court heard the motion on November 13, 1992, and denied it from the bench. Subsequently, it issued a written order on November 16, 1992.2 Bowie filed his notice of appeal with this Court on November 13, 1992.
ISSUE
The issue on appeal is whether the arrest warrant was constitutionally infirm and Bowie's arrest was unlawful. The government raised the issue of whether the arrest of Bowie was legal even if the warrant of arrest was constitutionally defective.
ANALYSIS
Bowie contends that the arrest warrant was invalid for two reasons. First, the request for the arrest warrant was made by a police officer, rather than an attorney for the government as required by Rule 9, Com.R.Cr.P. Second, the affidavit of probable cause was not supported by an oath3 or affirmation, as required by Article I, Section 3(a) of the CNM1 Constitution.
For the reasons set forth below, we hold that the arrest warrant was neither constitutionally infirm nor otherwise invalid. Furthermore, even if the arrest warrant was constitutionally *467infirm, the arrest of Bowie was not made inside his house, but with probable cause. Therefore, the arrest, even without a warrant, would still be valid.
A. Oath or Affirmation
Although the affidavit of probable cause was not notarized, the entire contení; of the affidavit; was in writing and signed by the Officer. The same Officer who executed the affidavit was asked by the judge to affirm whether the contents of the affidavit were true and correct, to which the Officer responded in the affirmative. We hold that such oral affirmation satisfies Article I, Section 3(a) of the CNMI Constitution.
The U.S. Supreme Court has made it clear, in interpreting Amendment IV to the U.S. Constitution, that the purpose for requiring an arrest warrant is to “interpose the [judge's] determination of probable cause to arrest before the officer could enter a house to effect an arrest." New York v. Harris, 495 U.S. 13, 110 S.Ct. 1640 (1990), citing. U.S. v. Watson, 423 U.S. 411, 96 S.Ct. 820, 46 L.Ed.2d 598 (1976). The judge is to make an independent determination of probable cause based on the affidavit. Here, the judge reviewed the affidavit of probable cause, received an affirmation by the officer who signed the affidavit that the statements therein were true and correct, was satisfied that there was probable cause, and then issued the arrest warrant. The probable cause was supported by an affirmation and the warrant was *468valid.
B. Requestor of the arrest warrant
The appellant's contention that the arrest warrant was invalid because it was requested by a police officer rather than a government attorney as provided by Rule 9, Com.R.Cr.P., is without merit. Rule 9 applies where an information has been filed charging a defendant with a felony. It states in part:
•Upon the request of the attorney for the government, the court shall issue a warrant for each defendant named in an Information supported by a showing of probable cause under oath, as is required by Rule 4(a).
Rule 9, Com.R.Cr.P. (emphases added). Here, no Information had been filed at the time the police officer requested the arrest warrant. Therefore, Rule 9 does not apply in this case. The CNMI has no statute or rule prohibiting a police officer from requesting an arrest warrant from a judge, based on probable cause, prior to the filing of a criminal complaint or information. When a judge is satisfied, based on an affidavit, a verified complaint, or a verified information, that a crime has been committed and a particular person committed such crime, the judge may issue a warrant for the arrest of that person. Rules 4 and 9, Com.R.Cr.P.
C. Place of the arrest
The government argues on appeal that even if the warrant of *469arrest were constitutionally infirm, the arrest of the defendant would still be legal because the defendant was not arrested inside his house. The officers did not enter the house in order to arrest the defendant. He was arrested at the door, and the arrest was based on probable cause. Under these circumstances, there was no need for an arrest warrant. We agree.
The U.S. Supreme Court in analyzing Amendment IV to the U.S: Constitution has made it clear that a warrantless arrest in a public place is permissible as long as the arresting officer has probable cause. New York v. Harris, supra. Physical entry of the home is the chief evil against which the wording of the Fourth Amendment is directed. The rule is designed to protect the physical integrity of the home. However, the Supreme Court draws a line at the entrance to the home.
The Supreme Court has ruled that while a person is standing in the doorway of his house, he is in a public place for purposes of the Fourth Amendment. United States v. Santana, 427 U.S. 38, 42, 96 S.Ct. 2406, 2409, 49 L.Ed.2d 300 (1976).
The Ninth Circuit follows the same rule. In United States v. Botero, 589 F.2d 430 (9th Cir. 1978), cert. denied. 441 U.S. 944, 99 S.Ct. 2162, 60 L.Ed.2d 1045 (1979), the defendant opened the door to his home in response to the agent's knock. The agent immediately placed the defendant under arrest. The court held that these facts do not present an issue of warrantless entry because there was no entry. Similarly, we find that the facts presented on this appeal fail to raise the issue.
*470For the above reasons, we AFFIRM the order of the trial court.
Entered this 22nd day of January, 1993.
JOSE S. DELA CRUZ, Chief Justice
RAMON G. VILLAGOMEZ, Associate Justice
JESUS C. BORJA, Associate Justice