Соответствующая норма
Practice Relating to Rule 87. Humane Treatment
Section B. Civilians
Belgium’s Law of War Manual (1983) states that, in internal armed conflicts, the following must be respected: “humanitarian treatment of persons who do not take a direct part in hostilities, including members of the armed forces who have laid down their arms and persons placed hors de combat”. It also provides: “The population in occupied territory must be treated with humanity.” 
Belgium, Droit Pénal et Disciplinaire Militaire et Droit de la Guerre, Deuxième Partie, Droit de la Guerre, Ecole Royale Militaire, par J. Maes, Chargé de cours, Avocat-général près la Cour Militaire, D/1983/1187/029, 1983, p. 17 and Chapter IX, § 2.