Norma relacionada
Practice Relating to Rule 117. Accounting for Missing Persons
Section B. Provision of information on missing persons
Mexico’s Army and Air Force Manual (2009) states: “[A]s soon as circumstances permit and, at the latest, when hostilities have ended, the parties to the conflict should search for persons reported missing by an adverse party and transmit all relevant information concerning such persons in order to facilitate the search.” 
Mexico, Manual de Derecho Internacional Humanitario para el Ejército y la Fuerza Área Mexicanos, Ministry of National Defence, June 2009, § 204.