Related Rule
Azerbaijan
Practice Relating to Rule 117. Accounting for Missing Persons
Azerbaijan’s Law concerning the Protection of Civilian Persons and the Rights of Prisoners of War (1995) provides:
Art. 28. The appropriate authorities and governmental bodies of the Azerbaijan Republic shall begin the tracing of the persons considered to be missing by the adverse party to the conflict at the first opportunity and at the latest as soon as active military operations are over …
Art. 29. The appropriate authorities and governmental bodies of the Azerbaijan Republic shall ensure that the necessary measures be taken that:
1) information is collected and registered concerning the missing person in all cases irrespective of whether they are detained, in prison or dead. 
Azerbaijan, Law concerning the Protection of Civilian Persons and the Rights of Prisoners of War, 1995, Articles 28 and 29(1).
Azerbaijan’s Law concerning the Protection of Civilian Persons and the Rights of Prisoners of War (1995) provides:
In order to further trace such persons [considered to be missing by the adverse party], information concerning them shall be given to the adverse party directly through the Protecting Power or their substitute – the ICRC …
The appropriate authorities and governmental bodies of the Azerbaijan Republic shall ensure that the necessary measures be taken that:
2) correct information concerning the missing and requests about them are given to the adverse party directly through the Protecting Power or their substitute – the International Committee of the Red Cross. 
Azerbaijan, Law concerning the Protection of Civilian Persons and the Rights of Prisoners of War, 1995, Articles 28 and 29(2).