Custodial Interrogation During Traffic Stops

The question of when custodial interrogation starts during traffic stops has challenged courts for many years. Choosing a definite rule as to when someone is in custody affects the timing of Miranda warnings. If a police officer waits too long to read Miranda warnings during a stop, the driver can challenge admissibility in court of any statements he makes after the stop becomes custodial but before the warnings are read. In one of many attempts to determine when “custodial interrogation” begins, the Supreme Court considered the case of Berkemer v. McCarty, 468 U.S. 420 (1984). In the case, a state police...