Washington — Statute

9A.12.010 – Insanity | Washington Law

Learn about Washington's Insanity law, including definitions, penalties, and legal implications.

Legal Content

Washington State Law

9A.12.010 – Insanity

Washington Criminal Code § 9A.12.010

Summary

RCW 9A.12.010 - Insanity To establish the defense of insanity, it must be shown that:(1) At the time of the commission of the offense, as a result of mental disease or defect, the mind of the actor was affected to such an extent that:(a) He was unable to perceive the nature and quality of the act with which he is charged; or(b) He was unable to tell right from wrong with reference to the particular act charged.(2) The defense of insanity must be established by a preponderance of the evidence.

Frequently Asked Questions

Why Attorneys Choose FlawFinder

Side-by-side with Westlaw and LexisNexis

Feature	FlawFinder	Westlaw	LexisNexis
Monthly price	$19 - $99	$133 - $646	$153 - $399
Contract	None	1-3 year min	1-6 year min
Hidden fees	$0, always	Up to $469/search	$25/mo + per-doc
Police SOPs	✓ 310+ departments	✗	✗
Zero-hallucination AI	✓ CitationGuard	✗	✗
Cancel	One click	Termination fees	No option to cancel

Explain Like I'm 5

In simple terms: Learn about Washington's Insanity law, including definitions, penalties, and legal implications.. This means people must follow this rule, and breaking it can lead to criminal penalties.