U.S. v. Coleman
In prosecution on obstruction of justice charge arising out of defendant-police officer’s tip to acquaintance that police were about to conduct drug task force raid that allowed targets of raid to hide drugs in different locations, prosecutor did not err in eliciting testimony from govt. witness that said witness initially lied to police because he feared retaliation from police dept. Said testimony was relevant because it tended to explain existence of witness’ inconsistent statements. Fact that prosecutor elicited said testimony through use of leading question did not rise to plain error. Ct. also rejected defendant’s claim that govt. knowingly proffered perjured testimony from same witness, where: (1) prosecutor introduced other evidence that undercut said witness’ testimony; and (2) plaintiff, who presumably was also aware of any false testimony, had opportunity to cross-examine and discredit said witness.