Related Rule
New Zealand
Practice Relating to Rule 117. Accounting for Missing Persons
New Zealand’s Military Manual (1992) provides: “As soon as possible, and certainly immediately upon the end of hostilities, each party to the conflict must search for those reported missing by the adverse Party.” 
New Zealand, Interim Law of Armed Conflict Manual, DM 112, New Zealand Defence Force, Headquarters, Directorate of Legal Services, Wellington, November 1992, § 1011(2).
New Zealand’s Military Manual (1992) provides:
The requests and all information which may assist in tracing or identifying [missing] persons shall be transmitted through the Protecting Power or the Central Tracing Agency of the International Committee of the Red Cross or the national Red Cross societies. 
New Zealand, Interim Law of Armed Conflict Manual, DM 112, New Zealand Defence Force, Headquarters, Directorate of Legal Services, Wellington, November 1992, § 1011(2).
The manual further states:
Each national Bureau must forward without delay information concerning protected persons to the Power of which such persons are nationals or in whose territory they formerly resided … The national Bureau must also reply to all enquiries concerning protected persons unless sending such information would be detrimental to the person concerned or to his relatives. Even then the information must be given to the Central Agency. 
New Zealand, Interim Law of Armed Conflict Manual, DM 112, New Zealand Defence Force, Headquarters, Directorate of Legal Services, Wellington, November 1992, § 1134(2).
New Zealand’s Military Manual (1992) provides: “Belligerents must facilitate enquiries by members of families dispersed as a result of the war, with the object of renewing contact between them.” 
New Zealand, Interim Law of Armed Conflict Manual, DM 112, New Zealand Defence Force, Headquarters, Directorate of Legal Services, Wellington, November 1992, § 1113(2).