After a non-jury trial, appellant Prince was convicted of one count of possession of marijuana. Before trial, appellant moved to suppress the marijuana, arguing both that the police lacked reasonable suspicion to stop the car in which he was a passenger and that the frisk conducted by the arresting officer exceeded its proper scope. After a hearing, the court denied appellant’s motion. We affirm the denial of the motion to suppress (and hence the conviction), but on a ground different from that relied upon by the trial court.
I
On the night of January 6, 2000, shortly after 10:00 p.m., Officer Lance Andriani of the Metropolitan Police was on duty in the 1200 block of Valley Avenue, S.E. Standing in a “field area” (apparently a small park) near a building, approximately twenty-five to thirty yards from the road, Officer An-driani looked through his binoculars and saw a man in a black leather jacket “approaching vehicles [and] making transac *930 tions.” Although Andriani did not see an actual exchange of drugs for money, he believed that this man’s “unusual” behavior was “consistent ... with dealing drugs.”
A short time later Officer Andriani saw this same man walk up to a red Saturn automobile with two people inside. • From his vantage point, he was able to see the man in the black leather jacket approach the right front side of the red Saturn with a “small object” in his hand, which the officer suspected was contraband. Officer Andriani then saw this man “reach his hand into the vehicle, then pull his hand out without anything in that hand and the money in his other hand.” Although he had binoculars, Officer Andriani could not clearly see the individuals in the red Saturn, the denomination of the money that changed hands, or the shape or size of the small object. Nor could the officer recall how many cars the man in the black leather jacket had approached before the red Saturn appeared on the scene. 1
The Saturn then made a U-turn and proceeded down 13th Street. Officer An-driani sent out a radio broadcast, asking other officers in the vicinity to stop a red Saturn heading toward Southern Avenue on 13th Street “in reference to a narcotics transaction.” Andriani testified that his radio lookout described the car, the number of occupants, and its direction of travel, and stated that the transaction involved the front-seat passenger in the car. At the time of this broadcast, Officer Carlos Mejia and his partner, Officer Rhodes, were on patrol in the 3900 block of 13th Street, between Valley and Southern Avenues. Officer Mejia testified that he caught sight of the red Saturn between thirty seconds and one minute after hearing Andriani’s radio call, and that there were no other red Saturns in the area at that time.
Mejia and Rhodes pulled the red Saturn over, alighted from their own car, and approached the Saturn, with Officer Rhodes on the driver’s side and Officer Mejia on the passenger’s side. After asking both the driver and the passenger (appellant) to get out of the car, Mejia told appellant that he “was going to perform a protective patdown for any weapons.” Officer Mejia testified that ás he patted appellant’s waistband, he “slid [his] hand past the white coin pocket of [appellant’s] pants,” and at that point he “felt an object that was consistent with the packaging of marijuana.” Although he did not manipulate the object in any way, he was able to feel “the texture of the marijuana” inside a “package,” and concluded that it felt like “a grassy substance inside of a plastic bag.” 2 Officer Mejia removed this object from appellant’s pocket and saw that it was a plastic ziplock bag containing “a green weed-like substance.” A field test showed, and a laboratory analysis later confirmed, that the substance was marijuana.
The trial court found that “there was a good basis for stopping the Saturn on Terry 3 grounds for further investigation.” *931 Crediting Officer Mejia’s testimony that when he felt the object in appellant’s pocket, he immediately believed it to be a bag containing marijuana, 4 the court ruled that the protective patdown was lawful. Before trial began the next day, the court denied appellant’s motion for reconsideration, noting that it had also based its decision on the fact that Officer Mejia conducted the patdown knowing that “his partner around the corner [Officer Andriani] saw the passenger ... engaged in what he believed was a drug purchase.”
II
“In reviewing a trial court order denying a motion to suppress, the facts and all reasonable inferences therefrom must be viewed in favor of sustaining the trial court ruling.”
Peay v. United States,
For reasons we shall discuss later in this opinion, we hold that the trial court was correct in ruling that the police had adequate reason to stop the Saturn, to order appellant to get out of the car, and to search his person. But even “[a]ssum-ing the validity of an investigatory stop, the police are not at liberty to conduct a protective search every time they make an investigative stop.”
Upshur v. United States,
On the other hand, it has long been held that an appellate court may uphold a trial court decision for reasons other than those given by that court.
See, e.g., Purce v. United States,
“[T]he test for judging the existence of probable cause is whether ‘a reasonably prudent police officer, considering the total circumstances confronting him and drawing from his experience,’ would be warranted in the belief that an offense has been or is being committed.”
Peterkin v. United States,
A. The Two-Way Exchange
Citing
Duhart v. United States,
Here, however, there was a two-way exchange of money for a “small object,” as there was in
Tobias v. United States,
Our determination of probable cause is not based solely on Officer Andriani’s observation of an exchange of money for a “small object.” Before the transaction with the red Saturn, the man in the black leather jacket approached at least one other car in the same suspicious manner as he approached the Saturn. Not only did this behavior appear to Officer Andriani, on the basis of his experience, to be consistent with selling drugs; it took place in a neighborhood that he knew, from patrolling it for the past two years, to be a high narcotics area.
See In re T.T.C.,
Although it was Officer An-driani — not Officer Mejia — who actually witnessed the transaction, that fact does not affect our decision. “There is no requirement that the arresting officer have sufficient firsthand knowledge to constitute probable cause. It is enough that the police officer initiating the chain of communication ... had firsthand knowledge .... ”
Daniels v. United States,
129 U.S.App. D.C. 250, 252,
B. The Description in the Radio Broadcast
Appellant also argues that even if the police had probable cause to believe that there was criminal activity going on, they did not have probable cause to believe he was involved in it. He bases this argument on the fact that the red Saturn was out of sight for approximately thirty to sixty seconds, asserting that “in an area with three large apartment complexes,” the description given by Officer Andriani allowed Officer Mejia “to stop anybody” *934 who happened to be driving a red Saturn that night. We disagree.
It is of course true that “[djescrip-tions applicable to large numbers of people will not support a finding of probable cause,”
Brown,
On these facts, we hold that Officer Mejia had probable cause to stop the red Saturn and arrest appellant.
See Hill,
IV
The trial court erred by failing to determine whether Officer Mejia reasonably feared for his safety before conducting a protective frisk under Terry v. Ohio. The error was harmless, however, because at the time appellant was searched, Officer Mejia had probable cause to believe not only that criminal activity had occurred, but that appellant was one of the persons who had engaged in it. Appellant’s conviction is therefore
Affirmed.
Notes
. The man in the black leather jacket was never identified at the hearing, and the record does not indicate whether he was arrested that night.
. Officer Mejia came to this conclusion on the basis of his experience, which included approximately 300 patdowns. In about fifty or sixty of those patdowns, he had felt an object that he suspected was a bag of marijuana, and in every case his suspicion turned out to be correct: "If I thought it was marijuana and I withdrew it [from the pocket of the person being patted down], it was in fact marijuana." When the court asked him if he had ever been wrong about this, he replied, "Not yet, no, ma’am.”
. See
Terry v. Ohio,
. The court said:
I credit his testimony that when he felt it, based on his experience, he believed it to be drugs.... I credit his testimony that when he felt it, he believed it to be a ziplock of drugs or some package of drugs. He said marijuana. I credit his testimony.
. The government is represented by different counsel on appeal. The name of the trial court prosecutor does not appear in this opinion.
. In
Upshur
the officer testified that he grabbed the defendant’s hand because he believed the defendant was clutching drugs in his fist. We held that this fact “fail[ed] to provide a basis for the officer to believe that appellant was armed and dangerous.”
Upshur,
. Appellant was searched by Officer Mejia before he was actually placed under arrest, but "[t]he fact that the search may have preceded the formal announcement of arrest by a moment or two ... is of no legal consequence.”
Hill,
. This court has also found probable cause lacking when the evidence showed only the passing of money from one person to another, even in a "high narcotics area,” without a transfer of anything in return.
See Haywood v. United States,
. Both
Smith
and
Daniels
are binding on this court under
M.A.P. v. Ryan,
