(1) Any person (the
citizen ) may use any force that is reasonably necessary in the circumstances
to prevent —
(a) the
continuance of an act being done by a person in his or her presence —
(i)
that involves the use of violence against a person; or
(ii)
that the citizen reasonably suspects will cause a person
to use violence against another person; or
(iii)
that the citizen reasonably suspects will cause a person
to fear violence will be used by a person against another person;
or
(b) an
act by a person that the citizen reasonably suspects is just about to be done
in his or her presence that is likely —
(i)
to involve the use of violence against a person; or
(ii)
to cause a person to use violence against another person;
or
(iii)
to cause a person to fear violence will be used by a
person against another person;
or
(c) any
other breach of the peace by a person; or
(d) the
commission of an offence; or
(e) the
doing of any act that the citizen reasonably suspects will be done in the
course of committing an offence.
(2) Subsection (1)
does not authorise the entry of any place or vehicle.
(3) If a person
reasonably suspects that the unlawful killing of a person is occurring in a
place or vehicle, the person, without a warrant, may enter it in order to
prevent the unlawful killing.