Wyrick v. Fields

Background

A soldier stationed at Fort Leonard Wood was charged with raping an elderly woman. After consulting private and military lawyers, he requested and signed consent for a polygraph test and said he did not want a lawyer present during the test. After the test, agents told him the machine showed deception and asked him to explain; he admitted sexual contact and was later questioned again and tried. State courts upheld the conviction; a federal appeals court ordered relief saying post‑test questioning violated the right to have counsel present.

Reasoning

The Court considered whether asking questions after a volunteered polygraph required fresh warnings or a new waiver of the right to have a lawyer present. The majority held that by requesting the polygraph the suspect had initiated interrogation and validly waived the right to counsel for follow‑up questions unless circumstances changed so much that his earlier waiver was no longer voluntary. Disconnecting the machine and asking for an explanation did not, by itself, erase the prior waiver. The Court concluded the appeals court misread a recent decision and created an unjustified per se rule, so it reversed.

Real world impact

The decision makes it clearer that police may follow up on volunteered tests and ask suspects to explain unfavorable polygraph readings without automatically providing a new set of warnings. Prosecutors may be able to use such post‑test explanations in trials when a valid waiver is shown. The ruling does not resolve separate questions about whether forcing questioning after formal charges or other lawyer‑presence issues violate different constitutional protections.

Dissents or concurrances

Justice Marshall dissented, arguing summary reversal was inappropriate and that consenting to a discrete polygraph does not necessarily allow post‑test interrogation; he emphasized unresolved lawyer‑presence concerns. Justice Stevens concurred but warned about summary dispositions.