Court of Appeals for the First Circuit June 27, 1984, 83-1389 (United States v. Marcelo P. Tapia)

BREYER, Circuit Judge.

Marcelo Tapia and his father Alejandro were convicted of possessing and distributing cocaine and of a related conspiracy. 18 U.S.C. § 2; 21 U.S.C. §§ 841(a)(1), 846. The evidence at trial showed that an informer, Eugene Winson, approached federal drug agents and offered to cooperate with them in return for -their help in securing leniency for him on state criminal charges.