Written by attorneys · grounded in primary & secondary sources — see below
A form of implied waiver arising when a party's actions are inconsistent with continued assertion of a known right. The conduct must demonstrate a voluntary choice to forgo the right after it has been explained. Courts treat such behavior as relinquishment without requiring an express oral or written statement.
Sources & Authorities
How it applies
Common Examples
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Suspect Answers After Silence
Detective Reyes read Winona Walsh her Miranda warnings in a hospital break room. Walsh sat quietly for an hour, nodding occasionally but never stating she wanted to stop or speak with counsel. When Reyes asked whether she had altered medication logs, Walsh answered yes. That response after warnings and without a clear invocation operates as a valid implied waiver.
Defendant Breaches Plea Deal
Wren Wallace entered a plea agreement that required him to testify against a codefendant. Wallace later refused to testify at the scheduled trial. The state treated the refusal as a breach that released it from its sentencing promise. Wallace's conduct of withholding testimony waived his double-jeopardy claim to enforcement of the original deal.
Select any source to read its text and confirm it supports the definition.
Cases
Hornbooks
Ricketts v. Adamson483 U.S. 1 (1987)
Suspect Eventually Speaks
Federal agents gave Whitney Washington full Miranda warnings during an insider-trading interview. Washington remained mostly silent for nearly two hours, shrugging at times but never requesting counsel or stating she wished to stop. When an agent asked whether she had tipped a friend about the merger, Washington answered yes. Her decision to respond after warnings constituted an implied waiver of the right to remain silent.
Berghuis v. Thompkins260 U.S. 370 (2010)
Common questions
Frequently Asked
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Does silence alone after Miranda warnings invoke the right to remain silent?+
No. Silence by itself does not constitute a clear and unambiguous invocation. A suspect must affirmatively state a desire to stop or remain silent. Without that statement, later answers can operate as an implied waiver.
Supporting sources
What conduct qualifies as waiver by conduct of a constitutional right?+
Conduct that is inconsistent with continued assertion of the right qualifies. Examples include voluntarily absenting oneself from trial or breaching a plea agreement by refusing to testify. Courts find waiver only when the actions clearly demonstrate relinquishment.
Supporting sources
Can answering one question after warnings create a valid waiver?+
Yes. Once warnings are given and understood, a suspect who chooses to answer an incriminating question without a prior clear invocation waives the right to remain silent. The answer is treated as voluntary and admissible.
Supporting sources
260 U.S. 370 (2010)Criminal Procedure
…had waived his right to remain silent. The Sixth Circuit reversed, holding that the state court was unreasonable in finding an implied waiver of Thompkins’ right to remain silent and in rejecting his ineffective-assistance-of-counsel claim. Held: 1. The state court’s decision rejecting Thompkins’ Miranda claim was correct…