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Updated: Jul 6, 2026

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Exploring the Role of Deontic Reasoning and World Knowledge in Wason´s Selection Task
Published on: July 22, 2025
Revisiting the deific-decree doctrine in Washington state
1Department of Psychiatry and Behavioral Sciences, University of Washington School of Medicine, Seattle, WA, USA. leonggb@dshs.wa.gov
Summary
Washington
Area of Science:
- Legal Studies
- Criminal Law
- Psychiatry
Background:
- The deific-decree exception to Washington's M'Naughten insanity standard was established in State v. Crenshaw.
- This legal doctrine has historically offered limited utility as a basis for the insanity defense.
- Recent court activity indicates a renewed examination of the deific-decree doctrine after a period of dormancy.
Purpose of the Study:
- To analyze the historical application and limited utility of the deific-decree exception in Washington state.
- To examine recent judicial developments concerning the deific-decree doctrine in Washington's insanity defense.
- To understand the evolving legal landscape of the insanity defense in Washington.
Main Methods:
- Review of case law pertaining to the deific-decree exception in Washington.
- Analysis of legal arguments and judicial reasoning in relevant court decisions.
- Examination of the period of inactivity and recent resurgence of the doctrine.
Main Results:
- The deific-decree exception, despite its establishment, has seen minimal practical application in insanity defense cases.
- Washington courts have recently reconsidered the deific-decree doctrine, suggesting potential shifts in its interpretation or application.
- The doctrine's limited utility persists, though recent cases may signal a re-evaluation.
Conclusions:
- The deific-decree exception to the M'Naughten standard in Washington has a history of limited effectiveness.
- Recent judicial engagement with the doctrine suggests ongoing legal debate and potential future developments.
- Further analysis is needed to ascertain the long-term impact of recent cases on the insanity defense in Washington.
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