17. Nothing is an offence which is done by any person who is justified by law, 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 justified by law, in doing it.
Illustration.
A sees Z commit what appears to A to be a murder. A, in the exercise, to the
best of his judgment exerted in good faith, of the power which the law gives
to all persons of apprehending murderers in the 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 acting in self-defence.
Section 11 Solitary confinement
Section 12 Limit of solitary confinement
Section 13 Enhanced punishment for certain offences after previous conviction
Section 14 Act done by a person bound, or by mistake of fact believing himself bound, by law
Section 15 Act of Judge when acting judicially
Section 16 Act done pursuant to judgment or order of Court
Section 17 Act done by a person justified, or by mistake of fact believing himself justified, by law
Section 18 Accident in doing a lawful act
Section 19 Act likely to cause harm, but done without criminal intent, and to prevent other harm