PART II—OFFENCES AGAINST THE PERSON
CHAPTER 1—JUSTIFIABLE FORCE AND HARM
Section 31—Grounds on which Force or Harm May be Justified.
Force may be justified in the cases and manner, subject to the conditions, hereinafter in this Chapter mentioned, on the ground of any of the following matters, namely—
(f) necessity for prevention of or defence against crime ;
Necessity - national proceedings
EDIT.