PENAL CODE OF BOTSWANA
PART I - General Provisions
General Rules as to Criminal Responsibility (ss 6-20)
13. Immature age
(1) A person under the age of eight years is not criminally responsible for any act or omission.
(2) A person under the age of 14 years is not criminally responsible for an act or omission unless it is proved that at the time of doing the act or making the omission he had capacity to know that he ought not to do the act or make the omission.
(3) A male person under the age of 12 years is presumed to be incapable of having carnal knowledge.
Age of criminal responsibility - national proceedings
EDIT.