Del. Code 11, § 424 : Crimes And Criminal Procedure — Defenses To Criminal Liability — Definitions relating to intoxication Date: 2 Sep 2016 TEXT PDF Current through 2016 Legislative Session, Act 399 As used in §§ 421-423 of this title: (1) "Intoxication" means the inability, resulting from the introduction of substances into the body, to exercise control over one's mental faculties. (2) "Voluntary intoxication" means intoxication caused by substances which the actor knowingly introduces into the actor's body, the tendency of which to cause intoxication the actor knows or should know, unless the actor introduces them pursuant to medical advice or under such duress as would afford a defense to a prosecution for a criminal offense. Del. C. § 424 11 Del. C. 1953, § 424; 58 Del. Laws, c. 497, § 1; 70 Del. Laws, c. 186, § 1.;