(1) A justice of the peace may exercise—
(a) any power conferred on a justice of the peace by or under any Act; and
(b) any other power that he or she is authorised to exercise under any other law.
(2) A magistrate may exercise any power conferred on a justice of the peace by or under any Act.
(3) Any power conferred on a justice of the peace at common law is only exercisable by a magistrate.