OPINION OF THE COURT
Fein, J.Police responded to a tip concerning a “man with a gun”. At issue is the level and intensity of the police response, an approach with guns drawn and a thorough body search which yielded a gun only upon a renewed effort.
Two police officers on motorized patrol on 8th Avenue near 136th Street at 2:30 in the morning were flagged down by a pedestrian described by them as a “clean cut” and “effeminate” black male who “appeared to be a homosexual”. He reported that he had observed a man on the street, outside a known homosexual bar, who “had a gun in his hand”. The weapon was described as a small snub-nosed revolver with black finish, being carried in “the front” of the man’s body, “around his abdomen”. The gun carrier was described as a stocky black male wearing a white T-shirt and dark blue jeans and his companion as a male wearing darker clothing, with lighter colored jeans. The informant said he had followed the pair on foot for 11 blocks, looking for police *323along the way, until he was finally able to flag down these two officers at the corner of 8th Avenue and 136th Street. The informant then told the police that the pair had entered “a grocery store up the block on the other side of 8th Ave.” The officers could see the lighted store, from where they were. They told the informant “to stay where he was”. The officers then radioed for backup assistance and “proceeded to the grocery store”. The officers looked into the store. They observed three people inside the store during the two minutes until the backup car arrived. No one left the store. As the backup car arrived, the two officers entered the grocery store with guns drawn.
One of the officers, who stated that defendant fit the description given by the informant, testified as follows: “I entered with my partner with my gun out in the store. I stepped in the store, about eight or ten feet there is a counter and then half inch plexiglass from the counter top to the ceiling. The store clerk deals through a revolving kind of shelf and that’s the eay [sic] they serve the public. He is stuck up enough. And we entered the store. Mr. Francis was in front of me at the counter, another individual was to his left and the other person with Mr. Francis was to his right, but further toward the wall. By this time the backup had arrived. They entered the store behind me. The individual that was to Mr. Francis’ left, I motioned to the rear and another officer took him out. I told Mr. Francis to hit the wall. And I was going to search him. His hands went up against the plexiglass, but not as high as I thought he could reach. I proceeded to pat down on the extremities of his body, starting at the waistband in the front around on both sides down the small of his back. I searched the inside of his groin area, his crotch, down inside of his legs, his socks, back up the outside, his armpits, around his kneck [sic] and down inside the collar of his shirt with negative results. However Mr. Francis was uneasy, his hands kept coming down off the wall. He kept turning. He did not maintain a stationary repose on the wall, as I had ordered him to do. I reminded him three or four times to keep his hands up on the plexiglass and I searched him again. This time I put my hand under his crotch and I grabbed him and I lifted up in his crotch area and I felt something hard, metal like hit my hand. At that time I yelled to my partner, ‘Eddie, he got something.’ I spun him around. I pushed him against the plexiglass and unbuckled his trousers. He had a loaded 38 caliber revolver in a leather puch [sic] that was tied around his waist there. It was tied inside of his pants, outside of his underwear. The gun was put in the pouch, the handle was turned to the right side of his body. And the gun was secreted in such a way as *324to avoid detection through a preliminary search. You had to really grab him in order to find the gun and in addition to that the gun was behind his belt, which if you felt his belt you would not feel the gun.”
Plainly this was something more than a mere pat down or frisk. It was practically a full-blown search and seizure. To justify a stop and frisk, the information furnished by the informant must be sufficiently reliable so as to form the basis for an articulable reason to suspect that the person seized and searched is in possession of a gun.
As noted in People v Russ (61 NY2d 693, 695): “A frisk requires reliable knowledge of facts providing reasonable basis for suspecting that the individual to be subjected to that intrusion is armed and may be dangerous (People v Carney, 58 NY2d 51; People v Benjamin, 51 NY2d 267).”
Here, the sole predicate was the information furnished by the unknown informant who left the scene and whose name and address were not determined. As in Russ (supra), no inquiry was made of defendant so he neither refused to answer nor answered evasively (see, People v Klass, 55 NY2d 821). No suspicious bulge was perceived in defendant’s clothing as in People v De Bour (40 NY2d 210, 213). Defendant’s appearance and movements were not concealed by darkness as in People v McLaurin (43 NY2d 902, revg on dissent 56 AD2d 80, 84). In effect, the information relied upon was received from an anonymous source, an unidentified individual, a weak source. (People v De Bour, 40 NY2d, at p 224; cf. People v Green, 35 NY2d 193, 195; People v Moore, 32 NY2d 67, cert denied 414 US 1011.) Unlike Benjamin (supra), no furtive movements were made by defendant except such movements as he made during the search.
The predicate for police action must exist at the time the action is instituted, as stated in De Bour (40 NY2d, at p 215). The court must consider “first whether or not the police action was justified in its inception and secondly whether or not that action was reasonably related in scope to the circumstances which rendered its initiation permissible”.
In Klass (supra), an unidentified passerby informed the police, who were on the sidewalk in front of a building, that there was a man with a gun, which he had seen, in the first-floor hallway of the building. The man was described as white, 20 to 22 years of age, wearing a brown short-waisted jacket. Within 20 seconds the officers ran the 30 feet into the hallway where they saw the defendant, the only person in the hallway. He matched the description they had just been given. When they asked him to *325identify himself, the defendant said nothing. When they asked him what he was doing in the premises, he again said nothing. He was then patted down, and a loaded .25 caliber pistol was discovered in his sock. In that case, the frisk was held to be lawful.
The analysis of the problem in People v Carney (58 NY2d 51, supra) is instructive. As that case holds, citing Terry v Ohio (392 US 1, 21), a stop and frisk is valid when “ ‘the police officer [is] able to point to specific and articulable facts which, if taken together with rational inferences from those facts, reasonably warrant that intrusion.’ ” The propriety of the frisk is the officer’s personal knowledge of the circumstances at the outset.
Thus, in Benjamin (supra), the mere anonymous tip of “men with guns” did not justify a pat down. However, the frisk was justified by the observations of the officer when he arrived at the scene and saw the defendant in that case reach behind his jacket to his waistband, where a weapon might be concealed. As the Carney court noted in commenting on Klass (supra) where the identification was furnished by an unidentified person, as in our case, additional circumstances provided the justification for the frisk in Klass. “Only after Klass refused to give his name or an explanation for his presence did the officers frisk him, thereby discovering a gun. Implicit in this court’s affirmance was the recognition that, although initially acting on secondhand information, the officers had articulable knowledge of circumstances tending to support a reasonable suspicion that Klass was dangerous.” (People v Carney, 58 NY2d, at p 54.) In our case we have only the unidentified informant’s account. Nothing else occurred prior to the search.
As ruled in People v Rivera (14 NY2d 441, 444, cert denied 379 US 978): “The first problem is the authority of the police in the circumstances shown here to stop and question defendant. The validity of subsequent police action would in turn necessarily rest on the initial right to make the immediate and summary street inquiry.” As the Rivera court noted and as we all must acknowledge, the authority of the police to stop a person and inquire on the basis of information such as the police had here involves hazards. The answer “may be a bullet”, or, as noted in Benjamin (supra, p 271), “a glint of steel”. The concerns for the liberty and privacy of the individual must be balanced against the risks. The level of intrusion must be measured by the reasonableness of the justification for undertaking it. It appears that what occurred in this case was a “search” and not a mere “frisk”. A frisk is a contact or patting of the outer clothing of a *326person to detect by the sense of touch whether a concealed weapon is being carried, something less intrusive than what occurred here. However, this is not dispositive.
As stated in Rivera {supra, at p 447): “The fact that the police detective actually found a gun in defendant’s possession is neither decisive nor material to the constitutional point in issue. The question is not what was ultimately found, but whether there was a right to find anything.”
In determining the level of intrusion, the comments in People v Green (35 NY2d 193, 195-196) are instructive. There, the unidentified street informant pointed out a suspect and told the police not only that the defendant had a gun but that he had already committed a crime. The frisk which was found to be justified, revealed a gun. The court stated (35 NY2d, at p 196): “In our view this case approaches the limit for a finding of reasonable suspicion prerequisite to a frisk (cf. People v. Bronk, 31 NY2d 995). There is a difference of significant degree between a report only that a person has a gun in his possession and another report that a person not only has a gun but that he has just used it for the commission of a crime. Similarly, turning the defendant around by his arm for a pat down is not the same as a bear-hug grab from the rear by one not known to be an officer of the law. A citizen walking our streets should not, without more, be exposed to physical assault by a police officer on the basis of an unsubstantiated report of mere possession of firearms volunteered by a stranger. To condone such conduct would be to expose innocent persons to harassment by pranksters and irresponsible meddlers. As indicated, however, there was more in the case now before us.”
Here, an unidentified informant reported that the defendant had a gun. No conduct of the defendant at the time of the institution of the frisk and search justified the level of intrusion. He made no attempt to flee. No police inquiry was made to corroborate the informant’s credibility (People v La Pene, 40 NY2d 210, 226, supra). The only demonstration of the reliability of the informant was the discovery of the gun, which obviously is irrelevant to the issue. Unlike the situation in People v Marin (91 AD2d 616), the informant here was not identified, and he furnished no information that a crime had been committed other than the assertion that defendant had a gun. The activity of the defendants in Marin when approached by the officer, together with the information furnished by an informant known to them, justified the search in that case. There was no such activity nor other corroborating circumstances here. Nor are the circumstances here similar to those in People v Chestnut (51 NY2d 14), *327where the seizure was justified by the officer’s observation that one defendant had passed what appeared to be a gun to Chestnut.
In order to deny suppression in our case, we must rule that information from an unidentified informant that another person has a gun in his possession is sufficient to justify a gunpoint search, without inquiry as to other evidence corroborating the informant. No cases have been found which support such a proposition. To rule so would be to approve an unreasonable search and seizure.
The motion to suppress should have been granted.
The judgment of Supreme Court, New York County (Leonard N. Cohen, J., at suppression hearing; Carol Berkman, J., at plea; Frederic S. Berman, J., at sentence), rendered April 25, 1983, convicting defendant on plea of guilty to criminal possession of a weapon in the third degree and sentencing him as a predicate violent felony offender to 2% to 5V2 years’ imprisonment, should be reversed, on the law, the motion to suppress should be granted, and the indictment should be dismissed.