Appellant was stopped by police and found in possession of drugs on two separate occasions in November 1997. 1 Appellant challenges the trial court’s denial of his motions to suppress the evidence for both days on the ground that his Fourth Amendment rights were violated. We hold that the trial court correctly found probable cause for the November 3 arrest and resultant search, but that on the record here, the motion to suppress should have been granted with respect to the November 8 stop. 2
I. Facts
At the pretrial hearing on appellant’s motions to suppress, the following facts relative to each incident were developed.
A. November 3, 1997
Jeffrey Clay, a police officer for seventeen years, had been involved in several hundred arrests, many of them related to drugs. On November 3, 1997, at approximately 7 p.m., Officer Clay and an officer *732 in training (Officer Lamont Carter) were in a squad car patrolling the area around 5th and I Streets, N.W., in Washington, D.C., which was known to be a high drug area. Appellant was standing approximately 50 feet away at the corner of 5th and I Streets, “displaying something in his right hand to a black female, who had U.S. currency in her hand.” Officer Clay described appellant’s actions at the time as “pushing his fingers over what was in his hand.... Like he was moving something around with his left hand in his right hand.” Although the officer said that he initially felt the woman was carrying money simply because of “the way it was in her hand”, he was sure it was money once they pulled up to appellant because “[s]he had it clenched, and some of the money was sticking outside of her hand.” Officer Clay knew the woman from experience and complaints from neighborhood citizens as someone who frequented that particular corner — “she is suspected of doing illegal activity of different kinds, illegal activity.”
[W]e pulled out of the alley and pulled right over to where they were. Then she clenched the money that was in her hand, like in a fist like, and he balled his hand up. They started walking northbound on 5th Street, and that would be in the 900 block. And as I pulled my cai' up toward the curb on the wrong side of the street, as where they were walking, Mr. Dexter Davis put the objects he had in his hand, or object, inside of his sleeve pocket.... [W]e jumped out of the car, and I asked both of them to put their hands up, put their hands on the car, and I patted down the sleeve right there where he had put the object.
On cross-examination, the officer explicitly stated that he was not looking for weapons when they began looking in appellant’s sleeve. The following colloquy then took place at the suppression hearing:
Q: Let me stop you for a second. Why did you stop them?
A: Because I suspected them of making — getting ready to make a drug transaction or were dealing with drugs on that corner.
Q: Why did you think that’s what was happening?
A: ‘Cause usually when somebody has U.S. currency on that corner and somebody’s showing something to them in their hand, that’s what goes on right there at that corner.
Q: How do you know that?
A: Because I’ve been out there 14, 15 years doing that.
After patting appellant’s sleeve for one or two seconds, and feeling “several loose rocks” inside the pocket, which Officer Clay thought to be crack cocaine, he removed several ziplock bags containing fifteen small loose rocks and a larger rock. These field tested positive for cocaine, after which appellant was placed under arrest.
Sandra Levi, the woman referred to by Officer Clay, testified for the defense. She stated that she and appellant were talking and walking to the store, when the officers came out of the alley, got out of their car, and told them to put their hands up. Ms. Levi denied trying to exchange anything with appellant or even holding any money towards appellant, and denied that appellant tried to show anything to her that day.
Crediting the officer’s testimony over Ms. Levi, the trial court made the following findings:
We’ve got a high narcotics area, we have officers watching somebody who has been a focal point of some complaints in the neighborhood, although — for criminal activity, although that’s undefined. That’s referring to Ms. Levi. We have Ms. Levi with currency in her hand, and the defendant with something that the *733 officer doesn’t know what it is in his hand but showing it to Ms. Levi in a way that this officer experienced in drug transactions says leads him to believe that a drug transaction is about to happen; displaying it, in other words, in a way somebody would who is displaying drugs for sale, but he doesn’t see what’s in the hand. Although he is not clear that it’s currency, as he approaches he sees that it’s currency. So, clearly it’s currency in her hand which she clutches upon seeing the police, and the defendant takes what he has in his hand and, upon seeing the police, hides it in his pocket, and the two of them walk away as they see the police approaching.
In finding probable cause for the arrest, the court denied the motion to suppress, and concluded:
I think the police had probable cause to arrest here, based on all the factors I’ve identified. And just to be clear again, I am — I credit the testimony of the police officer in its entirety, and I think I’ve identified the factors that I think were significant. I have seen the officer’s gesture that he made with his hand, which was a gesture of displaying something, and there was currency in the hand of the other person. I don’t think this was just a one-way transaction as a result of that. I think the officers were justified in believing that a drug transaction was about to take place before they interrupted it. I actually think that the officer acted very reasonably in feeling the pocket first before going in, given what he had observed, but I think that the correct analysis is that that touching, which was not for the purposes of frisking for weapons, had to be justified by probable cause.
B. November 8, 1997
The only government witness for the November 8 incident was Officer Lamont Carter, the officer in training who had been on the force for a little over a year and who had been with Officer Clay at the November 3 incident. On November 8, he and his partner received a radio run of an assault in progress at 5th and H Streets, N.E., with a description for a lookout for “a black male wearing a black jacket, blue jeans and a green shirt.” Within two minutes, the officers drove up “with lights and sirens.” At the 400 block of H Street, which is approximately a one minute walk from the scene of the assault, the officer saw appellant walking from about ten to fifteen feet away, fitting the description given in the radio run. Officer Carter acknowledged that he recognized appellant as the same man he and Officer Clay arrested on November 3, but he did not realize this until after they had stopped appellant. “When we got to the location, I got out of the car, and then I asked Mr. Davis to come over to the car.”
At that point, a female “approached us, she just said ‘Everything is okay. It’s all right. There’s no more problem.’ ” “ [A]fter that, just to investigate a little further, I had Mr. Davis put his hands on his car. Then I proceeded to do what’s called a pat down ... for my safety and my partner’s safety, I wanted to check to see if he had any weapons on him.” Upon patting appellant’s rear pant pocket, the officer felt hard pebbles, which turned out to be four clear ziplocks containing a white rock-like substance. Appellant was placed under arrest.
The trial court denied appellant’s motion to suppress:
I credit the officer’s testimony. He received a radio run from 5th and H Street for a man in a black jacket, blue jeans — a black male in a black jacket, green shirt and blue jeans, responded and was there within a couple minutes and saw the defendant between 4th and 5th on H Street, closer to 4th than 5th, *734 with a woman nearby who said that there was no longer a problem before; that the police officer had a right to make a Terry 3 stop at that point and, given that the report had been for assault in progress, found that he had a right to conduct a Terry frisk, and that that’s what he did. And then in the course of doing the Terry frisk, he felt what he said felt like pebbles, which I don’t exactly agree with defense counsel’s characterization of what he said there. I mean what he felt was consistent with what he had — of crack cocaine that he had felt before on a limited number of occasions. He wasn’t a particularly experienced officer, but it was certainly legitimate for him to take into account that he knew that this defendant only days earlier had been arrest[ed] for PWID cocaine.
II. Legal Analysis
In reviewing the trial court’s denial of the motions to suppress, the scope of our review is limited.
Flores v. United States,
A. November 3, 1997
Appellant contends that there was no probable cause for the police officers to stop and search him without a warrant. The thrust of his argument is that no transaction took place, and therefore, under our prior cases, without a completed two-way transaction, there could not be probable cause here. The government counters that this was a transaction in progress, and that because of the several factors in this case that were not present in other cases, the circumstances do rise to the level of probable cause here. We agree with the government, and hold that in light of these other factors, the officers were not required to wait until the transaction was completed to arrest and search appellant without a warrant.
Under the Fourth Amendment of the United States Constitution, an officer cannot conduct a warrantless search of a person, absent certain exceptions, without probable cause. The test for determining 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,
As so defined, probable cause existed here in the totality of the circumstances to justify the stop and search of appellant. Officer Clay was an experienced officer, and had been involved in over one hundred drug-related arrests.
Dickerson v. United States,
As stated above, in holding that probable cause existed here, we are taking into account our conclusion that the situation is about as close to a completed transaction as possible without an actual exchange of money or drugs. This case is properly viewed as an interrupted transaction; i.e., both parties had begun the transaction in that they were holding the objects necessary to complete the transaction, and were it not for the arrival of the officers, the transaction would have been momentarily consummated. This can be accurately described as the middle situation between a completed two-way transaction and one in which there is evidence only of one side of the transaction, such as the display or delivery of money or drugs alone. Apparently no prior case in our court has involved precisely this middle situation.
There is no dispute that evidence of a completed two-way transaction, such as an exchange of currency for a ziplock bag, lends support to a finding of probable cause.
See Coles v. United States,
On one side of the scale are cases involving a completed two-way transaction. Appellant points to several of these cases to support his argument. First, he relies on
Peterkin, supra,
In Peterkin, police officers, who had assisted in numerous narcotics arrests and were driving around in a high narcotic area, arrested the appellant after seeing him give something out of a vial to another person in exchange for “two or more singles.” Id. at 567-68. As the officers approached appellant, he stepped back and placed the vial and money in his pocket. This court sustained the admission of the contents of the vial at trial:
All this, coupled with the character of the neighborhood, gave rise to reasonable probability that an illegal narcotics transaction had been conducted. As with all borderline situations regarding probable cause, innocent explanations for activity may be imagined. But the mere possibility of other interpretations would not suffice to diminish the reasonable likelihood of illegality appearing, from the circumstances, to prudent men possessing the knowledge and experience of the officers in the case at bar.
Id. at 569 (footnotes omitted) (emphasis added). Appellant focuses on this language in Peterkin to argue that this situation, i.e., the two-way transaction, is the *737 borderline situation for finding probable cause in a drug transaction case.
However, a subsequent transaction case,
Vicks v. United States,
We recognized that [Peterkin ] presented a borderline situation but held that the two-way exchange tipped the scale from innocent activity to illicit bargaining. Here, of course, there was no ‘two-way exchange’ and no ‘plain view' of the [evidence]. Thus, there existed no probable cause to arrest appellant and seize the handkerchief.
Id. at 249.
Although at first reading these cases may appear to create the bright-line rule that appellant urges us to adopt, that simply is not so. Rather, Vicks suggests that Peterkin was a borderline situation because there were insufficient factors, independent of the two-way exchange, to create a fair probability that contraband would be found on the person. In Peter-kin, the fact that officers saw an exchange take place tipped the scale. In contrast, in Vicks, the officers only saw a man hand money to appellant, suggesting, at the most, the completion of one-half of a transaction. When read together, Peterkin and Vicks suggest that the real key in these cases is how the observed transaction fits into the totality of the circumstances. If there are sufficient other factors present, one need not always have a completed two-way transaction to create probable cause.
There are, of course, a number of other two-way transaction cases, like
Peterkin,
that found sufficient evidence for probable cause. For example, in
Tobias, supra,
Another such case is
Thompson, supra,
On the other side of the scale are cases that involved observation of what might be called only one side of a possible drug transaction, which appellant uses to argue that the pending case, like these other cases, lacks probable cause. For example,
Duhart v. United States,
Similarly, in
Waters v. United States,
Yet another such case is
In re T.T.C.,
Appellant was ‘seized’ by the police officer based on suspicions arising entirely from [the officer’s] earlier observation of another passenger transferring a small, white object to a person on a street corner that was known for high-drug activity. Yet all that [the officer] saw was one man pass another man a small white object on a corner known for drug trafficking. The object may have been illegal drugs or any number of other things.
Id. at 990.
The bottom line, then, is that the present case is different from those cited to us by appellant precisely because of the factors present here that support the finding of probable cause. Cases such as Duhart, Waters, and T.T.C. do not have the num *739 ber of relevant factors that are present here. And although there was not a completed two-way transaction here as in Peterkin, Tobias, and Thompson, we have enough facts to suggest that this was an interrupted drug transaction, and therefore tips toward the two-way transaction cases. Given all the circumstances, we affirm the trial court’s denial of appellant’s motion to suppress relating to the November 3 incident.
B. November 8, 1997
As presented to us, the controlling issue with respect to the November 8 stop is when appellant was “seized” for purposes of the Fourth Amendment. Appellant contends that the trial court erred in its position that police officers seized appellant only after the woman said that everything was “okay”. And if the seizure actually occurred prior to the woman’s comment, then appellant argues that there was no articulable suspicion under
Terry
to stop him at that time. He asserts that the failure by the government to identify the source of the information that led to the radio run broadcast falls afoul of the recent Supreme Court opinion holding that an anonymous tip cannot suffice to provide the basis for a
Terry
stop.
Florida v. J.L.,
The government does not attempt to justify the stop if it is held to have occurred prior to the time when the woman made the statement. Rather, it asserts that the trial court was correct in positing that the stop did not occur until after the statement was made. This is an issue of law.
United States v. Allen,
For Fourth Amendment purposes, a seizure occurs when “in view of all of the circumstances surrounding the incident a reasonable person would have believed that he was not free to leave[,]”
United States v. Mendenhall,
We turn to the facts of this case. Here, the officers were “coming in” to the location of the reported assault under “Code 1 status.” They were in a marked police car with flashing lights on and the siren sounding. They spotted appellant one block away from the location of the *740 assault and drove up to him. One of the officers got out of the car and asked appellant to “come over.” Was this a consensual encounter or a seizure at that point?
This court has not spoken at any length about the value, as a factor in the seizure analysis, of a police car’s lights and sirens being activated. However, in
Lawrence v. United States,
In this case, we have that additional component. Here, not only did the officers drive right up to appellant with the lights on and siren running, but Officer Carter testified that “[w]hen we got to the location, I got out of the car, and then I asked Mr. Davis to come over to the car.” We have no reason to believe that appellant did not begin to acquiesce to this instruction prior to the woman’s comment. As noted above, the burden was on the government to justify the Terry stop. We do not think that a reasonable person in that situation would have felt free to leave or decline to comply. On the record here, the motion to suppress the evidence relating to the November 8 incident should have been granted.
Accordingly, we affirm the conviction for the November 3 incident but reverse the conviction for the November 8 incident, and remand for further proceedings consistent with this opinion.
So ordered.
Notes
. A jury found appellant guilty of unlawful possession with intent to distribute a controlled substance in a drug free zone, in violation of D.C.Code §§ 33-541(a)(1), -547.1 (1998 Repl.), for an incident on November 3, 1997. The court, after the parties stipulated to the evidence, found appellant guilty of unlawful possession of a controlled substance, in violation of § 33-541(d), for an incident on November 8, 1997. The trial court suspended the concurrent sentences of twenty months to five years for the possession with the intent to distribute count and one hundred and eighty days for the simple possession count, and placed appellant on one year probation for each offense, to run concurrently.
. Appellant also contends that the District’s drug-free zone statute, D.C.Code § 33-547.1, violates his fundamental right to freedom of movement and thus requires strict scrutiny. This is a meritless argument. Other courts have upheld this type of statute against constitutional attacks based on various constitutional provisions. See, e.g.,
United States v. Holland,
.
Terry v. Ohio,
. Appellant devotes considerable time in his brief to argue that this court has stated that most of these factors do not "add much” to the probable cause determination and have been viewed with skepticism. His principal case for this proposition is
Smith v. United States,
. The government has the burden of proving that the stop was constitutionally permissible.
Upshur v. United States,
. We therefore do not explore that possibility.
Rose v. United States,
