General Part, Illustrations. (8)

1. A., the master of a ship, believing and having reasonable cause to believe that B., one of the crew, is about to head a mutiny against him, causes B. to be seized and put in confinement. A. has not wronged B., but, after having provided for the immediate discipline and safety of the ship, A. must not further punish B. without holding an inquiry and giving B. an opportunity of being heard in his own defence.

2. A person having the lawful custody of a lunatic does no wrong to the lunatic by using for his treatment such usual and reasonable restraint as is approved by the judgment and practice of competent persons.

Protection of acts done under authority conferred by law.20. Nothing is a wrong which is duly done by a person acting in execution of an authority conferred upon him by law:

Provided that where the authority is conferred for the benefit of the person exercising it, he must comply with all conditions prescribed by law for such exercise, and must avoid doing any unnecessary harm in such exercise.