Section 31 - Grounds on which force or harm is justified

Force may be justified in the case and in the manner, and subject to the conditions, provided for in this Chapter, on the grounds

(a) of express authority given by an enactment; or

(b) of authority to execute the lawful sentence or order of a Court; or

(c) of the authority of an officer to keep the peace or of a Court to preserve order; or

(d) of an authority to arrest and detain for felony; or

(e) of an authority to arrest, detain, or search a person otherwise than for felony; or

(f) of a necessity for the prevention of or defence against a criminal offence; or

(g) of a necessity for defence of property or possession or for overcoming the obstruction to the exercise of lawful rights; or

(h) of a necessity for preserving order on board a vessel; or

(i) of an authority to correct a child, servant, or other similar person, for misconduct; or

(j) of the consent of the person against whom the force is used.