Del. Code tit. 16, § 6830

Any person who, in good faith, intervenes without compensation to protect other persons against any criminal act involving death, serious physical injury, robbery, burglary, kidnapping or sexual intercourse compelled by force or threat at the scene of said attempted criminal act, shall not be liable for any civil damages resulting from the rendering of such assistance, except acts or omissions amounting to gross negligence or willful or wanton misconduct.