This is an appeal from the judgment of sentence for simple assault, 1 possessing an instrument of crime 2 , and carrying a firearm on a public street 3 without a license 4 . Appellant contends that (1) the trial court erred in not granting his motion to suppress evidence because the police did not have probable cause to stop and arrest him, and (2) there was insufficient evidence to support the verdict. For the following reasons, we affirm.
The trial court made the following findings of fact:
Philadelphia Police Officers observed defendant in close proximity to someone who appeared to them to engage in a drug transaction. They approached while wearing raid-gear marked “Police.” At that time the defendant reached into his waistband and produced a loaded revolv *277 er, which he proceeded to point at one of the Officers. Another Officer then disarmed the defendant.
Opinion, May 21, 1991, at 1-2.
Appellant was then arrested and charged with simple assault, aggravated assault, possessing an instrument of crime and carrying a firearm on a public street without a license. Appellant made a motion to suppress the revolver on the grounds that the police did not have probable cause to stop and arrest him. The trial court denied the motion and after a non-jury trial, appellant was found guilty of aggravated assault, possessing an instrument of crime, and carrying a firearm on a public street without a license.
Appellant then made several post-verdict motions. The court only granted appellant’s motion to reduce his aggravated assault conviction to one of simple assault and then proceeded to sentence him. Subsequently, appellant filed a motion to modify sentence, which was granted nunc pro tunc. The trial court vacated appellant’s original sentence and resentenced appellant to one-to-two years for simple assault, one-to-two years for possessing an instrument of crime, and two-and-one-half-to-five years for carrying a firearm on a public street without a license, all to run consecutively. Appellant then made timely appeal to this court.
Appellant first contends that the trial court erred in denying his motion to suppress the revolver. Specifically, appellant argues that he was not engaged in any incriminating activity when the police stopped and arrested him, and thus, the stop was deficient under
Terry v. Ohio,
The standard of review of a court’s denial of a motion to suppress evidence allegedly obtained in violation of the Fourth Amendment is well-settled. We look to see
*278 whether the record supports the suppression court’s factual findings and the legitimacy of the inferences and legal conclusions drawn from those findings. In making this determination, we consider only the evidence of the prosecution’s witnesses and so much of the evidence for the defense as, fairly read in the context of the record as a whole, remains uncontradicted.
Commonwealth v. Vinson,
In limited circumstances, an individual may be stopped and briefly detained.
Commonwealth v. Prengle,
Here, the trial court based the validity of the Terry stop of appellant on the testimony of Lieutenant Hartman of the Narcotics Field Unit of the Philadelphia Police Department. Lieutenant Hartman testified that, on September 20, 1989, at approximately 8:00 p.m., he and five other officers dressed in plain clothes and driving two unmarked *279 vehicles responded to a complaint about drug dealings in the 6100 block of Vine Street in Philadelphia. While at the 6100 block, he observed appellant standing next to another person at the comer of Sixty-first and Vine Streets. He then observed on three different occasions people approach appellant’s companion, hand cash to him and then take an object that he retrieved from his pocket. During each transaction, the officer observed appellant standing next to his companion. Based on his experience as a narcotics officer, Lieutenant Hartman testified that he believed that drug transactions had been made. After the third transaction occurred, he observed appellant and the other man leave the corner together. N.T., March 16, 1990, at 8-11.
From the officer’s testimony, it is evident that appellant was not merely present in a high crime area or in the vicinity of a recently reported crime. Rather, appellant was with a person who, it was believed, was presently engaged in selling drugs. While appellant contends that he did nothing but stand next to this person, that was enough to support a
Terry
stop. When a person is suspected of presently committing a crime, a reasonable suspicion develops that his companion is also involved, even though the companion’s only suspicious action was being in the company of the suspect.
See Commonwealth v. Chamberlain,
*280 Appellant next argues that the police lacked probable cause to arrest him. Furthermore, he argues that due to the illegal stop and arrest, he was forced to abandon the revolver he was carrying, and thus the revolver should have been suppressed.
The test for determining whether a police officer has sufficient probable cause to make an arrest without a warrant is well-established. “Probable cause exists where the facts and circumstances within the knowledge of the officer are reasonably trustworthy and sufficient to warrant a person of reasonable caution in believing that the arrestee has committed the offense.”
Commonwealth v. Chase,
Viewing the circumstances as the Lieutenant Hartman saw them to man pointing a revolver at him even though he was clearly identified as a police find that probable cause existed to arrest appellant. Furthermore, we find no support in the record for appellant’s claim *281 that he was not pointing the gun at the officer but merely abandoning it. Thus, we conclude that the Terry stop of appellant was valid and that there was probable cause to arrest him. Accordingly, we find that the trial court did not err in denying appellant’s motion to suppress the revolver.
Finally, appellant contends that there was insufficient evidence to support the verdict. Appellant, however, did not raise a general sufficiency of evidence contention in his post-trial motions.
5
Therefore, this contention is waived.
See Commonwealth v. Singh,
Judgment of sentence affirmed.
Notes
. 18 Pa.C.S.A. § 2701.
. 18 Pa.C.S.A. § 907(a).
. 18 Pa.C.S.A. § 6108.
. 18 Pa.C.S.A. § 6106.
. Appellant did raise a sufficiency of the evidence claim as to his conviction for aggravated assault. The trial court agreed with appellant and consequently reduced his conviction to one for simple assault.
. Appellant asserts that a defense witness testified at trial that appellant was inside a store when the police arrested him, and that from there he was taken outside and beaten. Appellant argues that because this testimony was unrebutted by Lieutenant Hartman, the only Commonwealth witness, the Commonwealth did not meet its burden to show that appellant was guilty beyond a reasonable doubt on any of the charges made against him. We disagree. It is well-settled that the uncorroborated testimony of a prosecution witness may be sufficient to convict in spite of contrary evidence from the defense, if the trier of fact, based on the evidence before it, chooses to lend credibility to the former.
See Commonwealth v. Wienckowski,
