¶1At the Huntley hearing conducted pursuant to defense counsel’s omnibus motion for suppression of “any and all statements [by defendant] on the grounds that said statements were taken in violation of his constitutional rights and while he was under serious physical and mental disabilities”, Detective Robert Gadson testified to his homicide squad’s investigation of the events of November 13, 1978 leading to the shooting death of one individual, the wounding of another and the arrest of defendant. In defendant’s version, as related to the witness after the arrest, one of three males entering a poolroom together came up to defendant and accused him of burglarizing his house. Upon the accuser’s pulling a pistol, defendant engaged him in a struggle for the weapon, which defendant apparently won; a second of the three males then stepped in to wrest control of the weapon from defendant. During the “tussl[e]”, the weapon discharged three times without, said defendant, causing injury. At that point the three males ran away, leaving defendant alone in the poolroom with the manager. The prosecutor objected when defense counsel attempted to elicit from Gadson the basis for defendant’s arrest at his girlfriend’s residence by Detectives Leonard Rainey and Mack Ferguson. The suppression court asked the prosecutor if he expected to develop the probable cause issue, and the prosecutor stated that although the issue had not been raised to that point, he expected it to be raised. The court agreed that the issue had not yet been raised, but said it had done so itself because of the United States Supreme Court’s decision in Dunaway v New York (442 US 200). The court, reasoning *668that Dunawaymade probable cause an issue in every Huntley hearing, ruled that defense counsel could properly seek such hearsay testimony from the witness (see CPL 710.60, subd 4). The witness testified that the arresting officers had acted on information supplied them from a source unknown to the witness to the effect that the assailant of the two victims had been a person named Andre and that this person was to be found at a specified address. He could not recall if anyone had identified the defendant to him personally as the perpetrator. Detective Rainey testified that he had responded to the scene of the crime about 15 or 20 minutes after it had occurred and spoke only with a police officer named Gatti or Gatty. This officer, who was not called to testify, told the witness that he had been informed by a “young lady” that one Andre had done the shooting and might be found at his girlfriend’s residence at the address specified. On cross-examination it was elicited that the witness was never informed of the informant’s identification or her source of information linking defendant to the crime. With the limited information given them by the officer, the witness and his partner drove to the address, a two-family house. After speaking to an occupant of the first-floor apartment who suggested that the person named by the detectives might be upstairs, the witness rang the upstairs bell and was addressed by a woman who, after the witness identified himself, denied that defendant was there. Upon being told what had occurred in the poolroom, however, the woman admitted that defendant was in the upstairs apartment and was “very upset” and “afraid”. The witness instructed her to inform defendant that he should come downstairs with his hands up and that the officers would not harm him; she ascended the stairs and reappeared at the top of the staircase with defendant. The witness, whose information was that defendant had fled from the crime scene with the gun still in his possession, drew his gun and held it behind him and ordered defendant to raise his hands and walk downstairs slowly. Defendant complied. The witness interrupted defendant’s apparent attempt to speak in order to recite to him his rights from memory and then asked defendant what had transpired in the poolroom. Defendant told him he had been in a fight with two “dudes”, one of whom had pulled a gun that went off; defendant then fled, tossing the gun into a vacant building en route to his girlfriend’s residence. The witness recalled these details without refreshing his recollection from note's, which he had not taken; however, he had discussed with the prosecutor the contents of Detective Gadson’s typed notes recording the defendant’s statement made to Gadson. The witness added that his brief search of the building failed to locate the weapon. The witness’ partner, Detective Ferguson, testified to the same effect upon being called by defense counsel. He specified that their information about the defendant had come from Gatty, but said he had not heard the statement given his partner by defendant. Defense counsel explicitly moved at the conclusion of the testimony to suppress the postarrest statements on the ground that the prosecutor had failed to produce Gatty to indicate the basis, if any, for the informant’s belief that defendant had been the assailant, and had accordingly failed to prove probable cause for defendant’s arrest at his girlfriend’s residence.
¶2 The record shows that defense counsel stated: “Your Honor, my motion is brief, and based upon the fact that apparently without any further testimony coming from the People on this point, apparently from Detective Rainey and Detective Ferguson, a Police Officer Gatty spoke to an unidentified woman, á woman I don’t even know was inside of the location at the time of the incident, who I don’t even believe is a witness to the incident, and based upon that sketchy information, Police Officer Gatty directed Detective Rainey and Detective Ferguson to a location … and upon arriving at that location, the detectives apprehended Andre Fenner [defendant], and arrested Andre Fenner without *669any probable cause to do so, other than he identified himself as Andre, and that they were looking for someone named Andre.” (Emphasis supplied).