Related Rule
Belgium
Practice Relating to Rule 124. ICRC Access to Persons Deprived of Their Liberty
Belgium’s Law of War Manual (1983) provides: “Prisoners of war have the right to apply to the representative of the Protecting Power.” It further states: “The Protecting Power and the ICRC shall have access to all premises occupied by prisoners of war.” 
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. 47.