CONSTITUTION OF BOTSWANA
CHAPTER II - Protection of Fundamental Rights and Freedoms of the Individual (ss 3-19)
10. Provisions to secure protection of law
(1) If any person is charged with a criminal offence, then, unless the charge is withdrawn, the case shall be afforded a fair hearing within a reasonable time by an independent and impartial court established or recognized by law.
Fair trial standards
Rights during trial - tried without undue delay
EDIT.