← The Rules
Are police allowed to lie to you during questioning?
Short answer
In the US, yes, within limits. In Frazier v. Cupp (1969) police falsely told a suspect his cousin had already confessed, and the Supreme Court still allowed his confession. Courts have generally let police use that kind of deception during interrogation.
What police generally can't do is force a confession through threats or promises that make it involuntary. A lie on its own, like "your partner already talked", usually isn't enough to throw a confession out.
In Part 4 the police are at Dre's door at 5:40am. He doesn't know they're allowed to lie to him.
Sources: Frazier v. Cupp, 394 U.S. 731 (Justia)
US federal rules, explained for a story. Not legal advice.