Part II – International Crimes and Offences Against The Administration of Justice
General Principles of Criminal Law
19. General principles of criminal law.
(1) For the purposes of proceedings for an offence against section 7 or section 8 or section 9 –
(c) a person charged with the offence may rely on any justification, excuse, or defence available under the law of Uganda or under international law.
Other defences - national proceedings
EDIT.