PPC Section 76

Section 76. Act done by a person bound, or by mistake of fact believing himself bound, by law

Nothing is an offence which is done by a person who is, or who by reason of a mistake of fact, and not by reason of a mistake of law, in good faith believes himself to be bound by law to do it.

Illustrations:

(a) A, a soldier, fires on a mob by the order of his superior officer, in conformity with the commands of the law. A has committed no offence.

(b) A, an officer of a Court of Justice, is ordered by that Court to arrest Y, and, after due enquiry, believing Z to be Y, arrests Z. A has committed no offence.