Del. Code 11, § 441 : Crimes And Criminal Procedure — Defenses To Criminal Liability — Ignorance or mistake of fact as defense Date: 2 Sep 2016 TEXT PDF Current through 2016 Legislative Session, Act 399 In any prosecution for an offense, it is a defense that the accused engaged in the conduct charged to constitute the offense under ignorance or mistake of fact if: (1) The ignorance or mistake negatives the state of mind for the commission of the offense; or (2) The statute defining the offense or a statute related thereto expressly provides that the ignorance or mistake constitutes a defense or exemption; or (3) The ignorance or mistake is of a kind that supports a defense of justification as defined in this Criminal Code. Del. C. § 441 11 Del. C. 1953, § 441; 58 Del. Laws, c. 497, § 1.;