CHAPTER ONE
General Provisions
PART II
JUSTIFICATIONS AND EXCUSES
Use of force and self-defence
Reasonable use of force in self-defence
34. A person may use such force as is reasonable in the circumstances —
(a) to prevent crime;
(b) to protect himself or herself or another person from injury;
(c) to protect himself or herself or another person (with his or her authority) from trespass to himself or herself or the other person;
(d) to protect from injury or damage his or her property or property belonging to another person with that person’s authority.
Self-defence - national proceedings
EDIT.