Related Rule
Practice Relating to Rule 146. Reprisals against Protected Persons
Section A. Captured combatants and prisoners of war
Nigeria’s Military Manual (1994), in a part dealing with the 1949 Geneva Convention III, states: “Reprisals directed against prisoner[s] of war are prohibited.” 
Nigeria, International Humanitarian Law (IHL), Directorate of Legal Services, Nigerian Army, 1994, p. 16, § 9.
Nigeria’s Manual on the Laws of War provides: “It is prohibited to take measures of reprisal against prisoners of war as a retaliation for violation of the Laws of War by the enemy.” 
Nigeria, The Laws of War, by Lt. Col. L. Ode PSC, Nigerian Army, Lagos, undated, § 37.