U.S. v. Sarihifard

Federal agents questioned Mohammad Sarihifard (defendant) about a car sale connected to a suspected money-laundering operation run by his friend and employer; Sarihifard lied, and the agents told him they knew he was lying. A prosecutor aware of that lie nonetheless convened a grand jury, warned Sarihifard of his Fifth Amendment rights, and put him on the stand, where he repeated the same lie under oath, leading to his perjury prosecution and conviction; Sarihifard appealed, raising perjury entrapment as a defense.