The Court affirmed Salinas's conviction after prosecutors used his silence during a voluntary pre-arrest interview. The controlling judgment was 5-4, but the reasoning was split between a three-justice plurality and a two-justice concurrence.
Police questioned Salinas voluntarily during a murder investigation. He answered many questions but stayed silent when asked about ballistic evidence. Years later, prosecutors used that silence as evidence of guilt.
Does the Fifth Amendment protect a suspect's silence during a voluntary, noncustodial police interview when the suspect does not expressly invoke the privilege?
The Fifth Amendment did not bar the prosecution from using Salinas's silence during a voluntary, noncustodial police interview because he did not expressly invoke the privilege against self-incrimination. A three-justice plurality required express invocation, while two concurring justices would have held the prosecutor's use of silence was not compelled testimony even if the privilege had been invoked.
How the justices lined up in this decision.
Salinas narrowed protection for silence in voluntary, noncustodial questioning. People who are not in custody may need to expressly invoke the Fifth Amendment to keep silence from being used against them, unless another exception applies. The case did not change the rule that a criminal defendant need not testify at trial to invoke the privilege.
Justice Alito announced a three-justice plurality joined by Chief Justice Roberts and Justice Kennedy. Justice Thomas concurred in the judgment, joined by Justice Scalia. Justice Breyer dissented, joined by Justices Ginsburg, Sotomayor, and Kagan.