Willie Allen Quinn entered a conditional plea of guilty to being a felon in possession of a firearm in violation of 18 U.S.C. §§ 922(g)(1) and 924(e). Prior to entering the plea, however, Mr. Quinn filed a motion to suppress evidence obtained during an investigatory stop conducted by officers of the Indianapolis Police Department. The district court denied the motion and, having reserved the right to do so, Mr. Quinn appeals the court’s ruling on the suppression issue. For the reasons set forth in the following opinion, we the district court.
I
BACKGROUND
During the morning hours of September 14,1994, uniformed officers of the Indianapolis Police Department (“IPD”) conducted a “street sweep” operation in the area of 16th and Bellefontaine Streets in Indianapolis. 1 At approximately 9:30 a.m., a number of marked IPD vehicles approached the intersection of 16th and Bellefontaine Streets. Several individuals, including a group of three men, were standing on the comer. As the police neared the intersection, IPD Officer Steven King, who was driving one of the marked vehicles, observed a clear plastic baggie being tossed on the sidewalk. Officer King believed the baggie to contain crack cocaine. He could not determine, however, which of the three men had thrown the baggie onto the ground.
The three men split up and began to walk away from the scene. One of the individuals walked southbound from the intersection; the other two men headed in the opposite direction. Officer King exited his vehicle and ordered the southbound individual, later identified as Willie Quinn, to stop. When Mr. Quinn did not comply with his initial request, Officer King repeated the command two or three more times before Mr. Quinn finally halted. The officer observed that Mr. Quinn was carrying a folded brown leather jacket in his arms. According to Officer King, the jacket was “wadded up in [Mr. Quinn’s] arms[,] and he carried it almost like a football, close to his body.” R.29, Transcript of Suppression Hearing, at 57.
Officer King ordered Mr. Quinn to accompany him back to the police car and to place the leather jacket on the car. As Mr. Quinn complied with these directives and placed the leather jacket on the hood of the police ear, *920 Officer King heard a “thud” sound. According to Officer King, the “thud” sound caused him to suspect that a heavy object was concealed inside the jacket.
Officer King conducted a pat-down search to insure that Mr. Quinn was unarmed. No weapons or drugs were found on Mr. Quinn’s person. The officer then patted the leather jacket and felt a hard object inside. According to Officer King, the object “certainly felt like a gun.” R.29, Transcript of Suppression Hearing, at 57. Opening the jacket, he discovered a .22 caliber Remington rifle that had been sawed-off and modified into a handgun. Officer King placed Mr. Quinn under arrest and then returned to the corner to retrieve the baggie of suspected crack cocaine. Later that day, Officer King filed an incident report describing the circumstances of Mr. Quinn’s arrest. Relying on this report, IPD Detective Arthur Scott executed an affidavit to justify Mr. Quinn’s arrest. Neither document included a reference to the “throwdown” of the baggie.
Mr. Quinn was arraigned in the Superior Court of Marion County on state charges relating to his unlawful possession of the firearm. During the initial arraignment hearing, the state court judge examined the affidavit and concluded that the state lacked probable cause to hold Mr. Quinn. However, the court gave the deputy prosecutor “a seventy-two hour extension to further investigate the ease and to determine whether or not there was probable cause.” R.32, Defendant’s Motion to Reconsider, Ex.A, at 2-3. When Mr. Quinn returned to court on September 20, 1994, the deputy prosecutor informed the court that her office had failed to prepare an amended affidavit. The court then dismissed the case for lack of probable cause.
Before Mr. Quinn was released from custody, however, the county prosecutor’s office filed a supplemental affidavit from Officer King. The supplemental affidavit describes how Officer King had “observed a baggie of suspected crack cocaine being tossed on the sidewalk” prior to his encounter with Mr. Quinn. R.29, Transcript of Suppression Hearing, Def.Ex.2, at 1. Upon receiving this supplemental affidavit, the state court reiniti-ated proceedings against Mr. Quinn.
The state charges were dismissed when Mr. Quinn was indicted by a federal grand jury. Count I of the indictment charged Mr. Quinn with being a felon in possession of a firearm in violation of 18 U.S.C. §§ 922(g)(1) and 924(e). Count II charged Mr. Quinn with possession of an unregistered firearm in violation of 26 U.S.C. §§ 5861(d) and 5871. Mr. Quinn filed a series of motions in the district court, including a motion to suppress the firearm that had formed the basis of the indictment.
Mr. Quinn called Officer King to testify at the suppression hearing. After hearing Officer King’s testimony, the district court denied Mr. Quinn’s motion to suppress the firearm. The court took the view that, under the circumstances, the officer’s decision to stop and frisk Mr. Quinn was justified under
Terry v. Ohio,
II
DISCUSSION
Mr. Quinn submits that the district court erred in concluding that, at the time he was stopped by Officer King, the officers had an objectively reasonable, articulable suspicion that he had committed or was about to commit a crime.
A.
We review the denial of a motion to suppress for clear error.
United States v. Butler,
Our discussion begins with the well-established principles that govern police-citizen encounters under the Fourth Amendment. Mr. Quinn contends—and the United States does not dispute—that his compliance with Officer King’s order to stop amounts to a “seizure” implicating the strictures of the Fourth Amendment.
See California v. Hodari D.,
In
Terry,
the Supreme Court held that a person may be stopped for brief questioning and a pat-down search if the police are able to point to “a reasonable suspicion of criminal activity.”
Terry,
Applying the standards outlined above, however, we agree with the district court that Officer King had objectively reasonable grounds to suspect Mr. Quinn of criminal activity. Officer King encountered Mr. Quinn in a high crime area known for drug trafficking.
2
As the police approached a small group of men standing on the corner, Officer King observed one of their number drop a baggie that appeared to contain illegal narcotics. When the police drew nearer still, the members of that group continued to behave suspiciously by scattering and then attempting to head off in opposite directions.
See Tom v. Voida,
Mr. Quinn contends that the district court erred in relying on the “throwdown” to support a finding of reasonable suspicion. According to Mr. Quinn, Officer King’s belated claim that he witnessed a throwdown of narcotics is wholly unsupported by credible evidence. Rather, he contends, the record supports the conclusion that no contraband was present prior to the encounter: (1) Officer King did not mention the alleged throw-down in his September 14, 1994 incident report; (2) The initial affidavit did not mention the alleged throwdown; (3) The illegible “Date Received” entries on the IPD property room voucher suggest that Officer King did not deposit the baggie in the IPD property room until several days after Mr. Quinn’s arrest; and (4) The contents of the baggie were destroyed by the IPD without first being tested. Without credible evidence to support the alleged throwdown, Mr. Quinn concludes, Officer King lacked reasonable suspicion to conduct an investigatory stop.
Through his testimony at the suppression hearing, Officer King explained the circumstances surrounding his reporting of the arrest and the IPD’s handling of the baggie. His testimony suggests that his initial report did not include a reference to the throwdown because the baggie could not be attributed to any particular person. Officer King testified that, immediately after taking Mr. Quinn into custody, he discussed the presence of the baggie with other officers at the scene. Because the officers were unable to link the baggie with a particular individual, no attempt was made to charge anyone with the possession of the suspected narcotics. Officer King further explained that, after submitting the initial affidavit, he was notified that the prosecutor required additional information concerning Mr. Quinn’s arrest. Following this conversation, on September 18,1994, he filed a more detailed incident report and affidavit that included a reference to the throwdown of suspected crack cocaine.
Officer King further testified that, after discussing the presence of the baggie with supervisory officers at the scene, he was instructed to book the baggie and its contents into the IPD property room. He explained that, because the baggie could not be linked to any particular individual and because it would not be used as evidence, the baggie was transported to the IPD property room so that it could be destroyed. With respect to IPD’s failure to test the contents of the baggie, Officer King testified:
Q. Because there was going to be no effort to prosecute anyone for the possession of that alleged controlled substance, was there any effort made to do a laboratory analysis, to test and see if in fact it was crack cocaine?
A. My understanding is no test was done based on the fact that it was not going to be used as evidence.
R.29, Transcript of Suppression Hearing, at 62-63.
The district court found Officer King to be “absolutely credible.” R.43, Transcript of Hearing on Motion to Reconsider, at 14. On appeal, such a determination is conclusive unless the district court has credited exceedingly improbable testimony.
See United States v. Veras,
In an attempt to support his claim that Officer King invented the throwdown of suspected crack cocaine after the fact in order to bolster the deficient initial affidavit, Mr. Quinn claims that the handwritten “Date Received” entries on the IPD property room voucher for the baggie are illegible. According to Mr. Quinn, these allegedly illegible entries indicate that Officer King did not book the baggie into the property room until September 19,1994.
*923 The district court had no difficulty discerning that the baggie had been booked into the IPD property room on September 14, 1994— the day of the arrest. The record supports this determination. In addition to his questionable interpretation of the document itself, Mr. Quinn failed to explain how his reading of the “Date Received” as September 19, 1994 squares with the fact that a clearly stamped notation on the voucher indicates that the baggie was destroyed on September 16, 1994. We note, moreover, that the serial number of the IPD property room voucher used to book the baggie of suspected crack cocaine directly follows the serial number found on the voucher used to book the firearm seized from Mr. Quinn. This succession of serial numbers further supports the government’s contention that the baggie and the firearm were booked at the same time—the day of Mr. Quinn’s arrest.
We are of the opinion, therefore, that Officer King’s initial apprehension of Mr. Quinn amounts to a valid
Terry
stop supported by reasonable suspicion. We agree with the district court, moreover, that Officer King’s subsequent decision to pat down Mr. Quinn and his leather jacket was also proper. Under
Terry,
a law enforcement officer may take reasonable measures to determine whether a suspect is armed “[w]hen the officer is justified in believing that the individual whose suspicious behavior he is investigating at close range is armed and presently dangerous to the officer or to others.”
Terry,
B.
In a related claim, Mr. Quinn contends that the district court erred in failing to compel the government to produce the original IPD property room voucher for the baggie of suspected crack cocaine. Mr. Quinn sought the original voucher under
Brady v. Maryland,
In order to succeed on a
Brady
claim, “the defendant must show that the evidence was favorable, suppressed, and material to his case.”
Veras,
Applying these standards to the facts of the present case, we conclude that Mr. Quinn has failed to show any “reasonable probability” that his possession of the original property room voucher would have resulted in the suppression of the firearm.
See Bastanipour,
Conclusion
For the foregoing reasons, the judgment of the district court is affirmed.
AFFIRMED
Notes
. In a "street sweep” operation, the IPD targets a neighborhood with an identified crime problem and then conspicuously enters the area with uniformed officers. The objective of such an operation is to deter and to detect the targeted activity. Prior to conducting the "street sweep” that led to Mr. Quinn’s arrest, the IPD had targeted the subject area as one that is known for drug trafficking.
. In
United States v. Evans,
