Related Rule
Russian Federation
Practice Relating to Rule 117. Accounting for Missing Persons
Section B. Provision of information on missing persons
The Russian Federation’s Military Manual (1990) recalls the rules of IHL, “which set the obligation: a) in peacetime: … to provide for a set of measures relating to the organization of tracing, registration of and reporting of missing persons, and also of a service to implement these measures”. 
Russian Federation, Instructions on the Application of the Rules of International Humanitarian Law by the Armed Forces of the USSR, Appendix to Order of the USSR Defence Minister No. 75, 1990, § 14.