Indian Penal Code,1860
Act No : 45
Section :
Act done by a person justified, or by mistake of fact believinghimself, justified, by law.
79. Act done by a person justified, or by mistake of factbelieving himself, justified, by law.--Nothing is an offence which isdone by any person who is justified by law, or who by reason of amistake of fact and not by reason of a mistake of law in good faith,believes himself to be justified by law, in doing it. Illustration A sees Z commit what appears to A to be a murder. A, in theexercise, to the best of his judgment exerted in good faith, of thepower which the law gives to all persons of apprehending murderers inthe fact, seizes Z, in order to bring Z before the proper authorities.A has committed no offence, though it may turn out that Z was actingin self-defence.