Соответствующая норма
Practice Relating to Rule 123. Recording and Notification of Personal Details of Persons Deprived of Their Liberty
In 1995, during a debate in the UN Security Council regarding persons unaccounted for in Bosnia and Herzegovina, Botswana stressed that the Bosnian Serbs had an obligation under international law to facilitate the registration of all persons they held prisoner. 
Botswana, Statement before the UN Security Council, UN Doc. S/PV.3612, 21 December 1995, p. 5.