U.S. v. Gayton

Record contained sufficient evidence to support jury's guilty verdict on drug distribution charges arising out of two controlled purchases that were witnessed in part by police. Govt. was not required to produce informant as witness at trial, and fact that police did not personally observe defendant take police-supplied money from informant and give informant drugs in exchange for said money did not require different result where govt. showed that informant was searched before and after both purchases to preclude any other reason for informant having drugs after his encounter with defendant. Also, Dist. Ct. did not err in allowing police officials to testify about matters that occurred out of their sight without calling informant as witness since said officials could testify about what they heard on recordings of said purchases.