CHAPTER I The Republic
4. Protection of right to life
(2) A person shall not be regarded as having been deprived of his or her life in contravention of subsection (1) of this section if he or she dies as the result of the use, to such extent and in such circumstances as are permitted by law, of such force as is reasonably justifiable-
(a) for the defence of any person from violence or for the defence of property;
PENAL CODE OF BOTSWANA
PART I - General Provisions
General Rules as to Criminal Responsibility (ss 6-20)
16. Defence of person or property
Subject to the express provisions of this Code or any other law for the time being in force, a person shall not be criminally responsible for the use of force in repelling an unlawful attack upon his person or property or the person or property of anyone whom it is his moral or legal duty to protect if the means he uses and the degree of force he employs in so doing are no more than is reasonably necessary in the circumstances.
1. In addition to other grounds for excluding criminal responsibility provided for in this Statute, a person shall not be criminally responsible if, at the time of that person's conduct:
(c) The person acts reasonably to defend himself or herself or another person or, in the case of war crimes, property which is essential for the survival of the person or another person or property which is essential for accomplishing a military mission, against an imminent and unlawful use of force in a manner proportionate to the degree of danger to the person or the other person or property protected. The fact that the person was involved in a defensive operation conducted by forces shall not in itself constitute a ground for excluding criminal responsibility under this subparagraph;