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Wisconsin · Through 2023-24 Wisconsin Statutes updated through 2025 Wis. Act 247 (published 9-4-26)

Wis. Stat. § 939.43: Mistake.

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Where this section sits in the code
  1. Chs. 939-951, Criminal Code
  2. Chapter 939 Crimes — General Provisions
  3. SUBCHAPTER III DEFENSES TO CRIMINAL LIABILITY

(1) An honest error, whether of fact or of law other than criminal law, is a defense if it negatives the existence of a state of mind essential to the crime.

(2) A mistake as to the age of a minor or as to the existence or constitutionality of the section under which the actor is prosecuted or the scope or meaning of the terms used in that section is not a defense.

Collected 2026-09-05T12:01:50Z. Source file · JSON

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