Related Rule
Practice Relating to Rule 157. Jurisdiction over War Crimes
Nigeria’s Geneva Conventions Act (1960), which provides for the punishment of grave breaches of the 1949 Geneva Conventions “whether in or outside the Federation” and committed by “any person, whatever his nationality”, states:
A person may be proceeded against, tried and sentenced in the Federal territory of Lagos for an offence under this section committed outside the Federation as if the offence had been committed in Lagos, and the offence shall, for all purposes incidental to or consequential on the trial or punishment thereof, be deemed to have been committed in Lagos. 
Nigeria, Geneva Conventions Act, 1960, Section 3(1) and (2).