delivered the opinion of the court:
After a jury trial in the circuit court of Rock Island County, the defendant, Danny Ray Wolgemuth, was convicted of unlawful possession of less than 200 grams of a controlled substance. He was sentenced to a term of imprisonment of not less than one year nor more than three years. The appellate court reversed the conviction, holding that the trial court had erred in denying defendant’s motion to suppress evidence discovered incident to an unlawful, warrantless arrest of the defendant.
The issue before this court is whether, by entering the defendant’s private dwelling to make the arrest, the police violated the defendant’s fourth amendment right to be secure against unreasonable search and seizure.
A court in Keokuk, Iowa, issued an arrest warrant against the defendant for the offense of burglary. In pursuit of the fruits of the burglary, Iowa authorities used the arrest warrant to obtain an Illinois search warrant to search what they believed to be the defendant’s residence in Rock Island. The search by Iowa police, assisted by Officer Donald Barker of the Rock Island city police department, proved fruitless.
The next day, Officer Barker received a tip from Helen Allen, a probation officer. The tip, based on information from an anonymous informant who was unknown to Barker, informed Barker that the defendant was residing with one of Ms. Allen’s female probаtioners at an address other than that which had been searched the previous day. The record indicates that the defendant and the female probationer had rented an apartment jointly as husband and wife. At approximately 10 a.m., Barker, Ms. Allen, and Officer Smiley went to the apartment without an arrest or search warrant in their possession. Barker testified that they knocked on the door for about 10 minutes, but no one responded. The officers checked with neighbors, who indicated that persons fitting the descriptions conveyed by the police did reside in the apartment and had not been seen leaving the apartment that morning. The officers went to the manager аnd had him call the owner of the building. With the owner present, the officers knocked on the door again for approximately five minutes before the owner, with a pass key, admitted them into the defendant’s apartment. At the suppression hearing, Officer Barker testified that he did not remember whether the police had announced their authority and purpose as they entered the apartment.
Once inside, the police walked through a living room into the bedroom where they found the defendant and the female probationer asleep. As Officer Smiley took the defendant into custody, Officer Barker noticed plastic pill bottles without prescription labels on a tаble at the foot of the bed. Barker also stepped on pills, scattered on the floor, which appeared similar to those in the bottles. Barker seized the bottles, the contents of which were later introduced into evidence.
It is conceded that if the entry and arrest were lawful, the seized pills would be admissible as evidence found in plain view incident to a lawful arrest. It is also conceded that the police had probable cause to arrest the defendant and that, had the defendant been arrested on a public street without a warrant, no constitutional issue would be involved.
The decision of the appellate court in this case presupposes that the police made a warrantless arrest. (
We need not inquire whether exigent circumstances justified the entry, because we are of the opinion that the warrant issued by an Iowa magistrate validated the entry.
Defendant contends that the entry was warrantless because an Iowa arrest warrant has no validity beyond the boundaries of Iowa. This position accurately exprеsses the common law absent statutory authority to the contrary. (5 Am. Jur. 2d Arrest secs. 18, 20 (1962).) Defendant overlooks the Illinois statute which expressly provides that “ [a] peace officer may arrest a person when *** [h] e has reasonable grounds to believe that a warrant for the person’s arrest has been issued in this State or in another jurisdiction.” (Emphasis added.) (Ill. Rev. Stat. 1973, ch. 38, par. 107 — 2(b).) The plain meaning of the statute authorizes police to arrest on the basis of out-of-State, as well as in-State, warrants. Defendant does not challenge the intrinsic constitutionality of the Iowa warrant, e.g., that it was not based on probable cause or that it did not adequately describe the persоn to be arrested or that it was not issued by a neutral magistrate. Moreover, the Iowa warrant is not invalidated merely because the officers failed to have it in their possession at the time of the arrest. The committee’s comments accompanying section 107 — 2(b) specify:
“Under subsection (b) it is not necessary for the officer to hаve the warrant with him to make an arrest based on a warrant.” (Ill. Ann. Stat., ch. 38, par. 107 — 2(b), Committee Comments, at 162 (Smith-Hurd 1970).)
Also see People v. Jeffries (1964),
The fact that an arrest warrant had been issued distinguishes this case from that in which police execute a warrantless entry of a suspect’s home. The primary function of the warrant requirement of the fourth amendment is to interpose prior tо an arrest a neutral magistrate’s review of the factual justification for the charges. (United States v. Watson (1976),
The defendant also contends that his right to be secure against unreasonable search and seizure was violated by the failure of police to announce their authority and purpose beforе entering to arrest him. Because the appellate court found that the defendant’s constitutional right had been violated by the warrantless entry, it did not address this issue.
Illinois has no statutory requirement that an officer must announce his authority and purpose. The applicable Illinois statute merely states:
“All necessary and reasonable fоrce may be used to effect an entry into any building or property or part thereof to make an authorized arrest.” (Ill. Rev. Stat. 1973, ch. 38, par. 107-5(d).)
Therefore, if we are to hold that the officers were required to state their authority and purpose before entering the defendant’s apartment to make the authorized arrest, we must find either that the fourth amendment requires an announcement as an essential element of a reasonable search and seizure, or that, under the circumstances in this case, the failure to announce rendered the entry constitutionally unreasonable.
The United States Supreme Court has, in three cases, considered whether an offiсer must announce his authority and purpose before entering a home to arrest or search. Two of these cases involved the interpretation of a Federal statute which provided:
“The officer may break open any outer or inner door or window of a house, or any part of a house, or anything therein, to exeсute a search warrant, if, after notice of his authority and purpose, he is refused admittance or when necessary to liberate himself or a person aiding him in the execution of the warrant.” (18 U.S.C. sec. 3109.)
In Miller v. United States (1958),
In Sabbath v. United States (1968),
Ker v. California (1963),
“To make an arrest *** in all cases a police officer, may break open the door or window of the house in which the person to be arrested is, or in which*** [the officer has] reasonable grounds for believing him to be, after having demanded admittance and explained the purpоse for which admittance is desired. ” (Emphasis added.)374 U.S. 23 , 37 n.9,10 L. Ed. 2d 726 , 740 n.9,83 S. Ct. 1623 , 1632 n.9.
Prior to Ker, California courts had engrafted a series of exceptions onto the statutory requirement to announce the purpose for which admittance is demanded. A five-to-four majority of the Ker court held:
“ [I] n the particular circumstances of this case the officers’ methоd of entry, sanctioned by the law of California, was not unreasonable under the standards of the Fourth Amendment as applied to the States through the Fourteenth Amendment.”374 U.S. 23 , 40-41,10 L. Ed. 2d 726 , 742,83 S. Ct. 1623 , 1634.
A careful reading of the opinions in Ker reveals that the majority of the court did not address whether the Constitution itself required police to announce their authority and purрose. California’s statute required police to do so. The majority went on to consider whether the exceptions engrafted onto the statute by California courts offended constitutional standards of reasonableness secured by the fourth amendment. The majority found that the officers reasonably believed that the defendant wаs in possession of narcotics which could easily have been destroyed once the defendant was informed of the presence of police. The court also found that the defendant’s furtive conduct in eluding the police before the arrest was grounds for the police to reasonably believe that the defendant wаs expecting them, thus making an announcement of authority and purpose a superfluous gesture. In so finding, the majority concluded that the two exceptions, recognized by California courts in interpreting their own statute, did not violate the reasonableness clause of the fourth amendment. Because the California statute required an announcement, the majority did not have to consider whether announcing authority and purpose is merely one of many factors to be weighed in ascertaining if an entry to arrest or search is constitutionally reasonable, or whether the Constitution affirmatively requires an announcement, absent certain exigent circumstances.
To bе sure, the four-member minority, in determining that the exigent circumstances in Ker did not justify the failure of police to announce their authority and purpose, did state quite broadly:
“Even if probable cause exists for the arrest of a person within, the Fourth Amendment is violated by an unannounced police intrusion into a private home, with or without an arrеst warrant, except (1) where the persons within already know of the officers’ authority and purpose, or (2) where the officers are justified in the belief that persons within are in imminent peril of bodily harm, or (3) whejre those within, made aware of the presence of someone outside (because, for example, there has been а knock at the door), are then engaged in activity which justifies the officers in the belief that an escape or the destruction of evidence is being attempted.”374 U.S. 23 , 47,10 L. Ed. 2d 726 , 746,83 S. Ct. 1623 , 1636.
By concluding that the United States Supreme Court has not expressly elevated to a constitutional requirement the practice of announcing authority and purpose, we do not mean to devalue its importance. Although the mere failure of police to announce their authority and purpose does not per se violate the Constitution, it may influence whether subsequent entry to arrest or search is constitutionally reasonable. The function of the requirement to announce authority and purpose is to notify the person inside of the presence of police and to afford the person an opportunity to respond, so that violence can be averted and privacy protected.
This case is not one in which police calculatedly refrained from announcing their presence and purpose in the course of either violently or stealthily entering a suspect’s home. Uncontroverted testimony indicates that the officers knocked on the door for 10 minutes in an attempt to notify the defendant of their presence and of their intention to arrest him for the Iowa burglary. Upon receiving no response, they asked the manаger to call the owner of the building so that they might enter to arrest the defendant. When the owner arrived, the officers again knocked on the door for five minutes, giving the defendant another opportunity to respond before the owner unlocked the door. Officer Barker testified that he could not recall whether or not he had announced his authority and purpose upon entering. It is reasonable, from the officers’ perspective at that time, after two rounds of prolonged knocking at the door, that another effort to notify the defendant of their presence would have been a superfluous and futile gesture.
We hold that the officers, in accordanсe with Illinois law, used necessary and reasonable force in entering the defendant’s apartment to make the arrest, and that the mere failure to announce their authority and purpose did not, under the circumstances, violate the standards of reasonableness required under the fourth amendment.
Accordingly the judgment of the appellate court is reversed, and the judgment of the circuit court of Rock Island County is affirmed.
Appellate court reversed; circuit court affirmed.
