CONSTITUTION OF BOTSWANA
CHAPTER II - Protection of Fundamental Rights and Freedoms of the Individual (ss 3-19)
10. Provisions to secure protection of law
(2) Every person who is charged with a criminal offence-
(e) shall be afforded facilities to examine in person or by his or her legal representative the witnesses called by the prosecution before the court, and to obtain the attendance and carry out the examination of witnesses to testify on his or her behalf before the court on the same conditions as those applying to witnesses called by the prosecution; and
Rights during trial - examine witnesses
EDIT.