Del. Code tit. 11, § 784

In any prosecution for unlawful imprisonment or kidnapping it is an affirmative defense that the accused was a relative of the victim, and the accused’s sole purpose was to assume custody of the victim. In that case, the liability of the accused, if any, is governed by § 785 of this title, and the accused may be convicted under § 785 when indicted for unlawful imprisonment or kidnapping.