Delaware Code
Chapter 3. PROVING AND DISPROVING CRIMINAL GUILT
§ 304. Defendant's affirmative defenses; prove by preponderance of evidence.

(a) When a defense declared by this Criminal Code or by another statute to be an affirmative defense is raised at trial, the defendant has the burden of establishing it by a preponderance of the evidence.
(b) Unless the court determines that no reasonable juror could find an affirmative defense established by a preponderance of the evidence presented by the defendant, the defendant is entitled to a jury instruction that the jury must acquit the defendant if they find the affirmative defense established by a preponderance of the evidence.
(c) An affirmative defense is established by a preponderance of the evidence when the jury is persuaded that the evidence makes it more likely than not that each element of the affirmative defense existed at the required time.

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