11 Del. C. § 469: Justification — Person unlawfully in dwelling.

In the prosecution of an occupant of a dwelling charged with killing or injuring an intruder who was unlawfully in said dwelling, it shall be a defense that the occupant was in the occupant’s own dwelling at the time of the offense, and:

(1) The encounter between the occupant and intruder was sudden and unexpected, compelling the occupant to act instantly; or

(2) The occupant reasonably believed that the intruder would inflict personal injury upon the occupant or others in the dwelling; or

(3) The occupant demanded that the intruder disarm or surrender, and the intruder refused to do so.