Règle correspondante
Mexico
Practice Relating to Rule 116. Accounting for the Dead
Mexico’s Army and Air Force Manual (2009), in a section on the 1949 Geneva Convention I, states:
Parties to the conflict must ensure that burial on land or at sea or cremation of the dead, carried out individually as far as circumstances permit, is preceded by an examination, if possible a medical examination, of the bodies, with a view to confirming death and establishing identity. 
Mexico, Manual de Derecho Internacional Humanitario para el Ejército y la Fuerza Área Mexicanos, Ministry of National Defence, June 2009, § 92.
Mexico’s Army and Air Force Manual (2009), in a section on the 1949 Geneva Convention I, states:
Parties to the conflict must record as soon as possible any particulars of the wounded, sick and dead of the adverse party which may assist in their identification, including the designation of the power on which they depend and the following details:
A. number;
B. surname;
C. first name(s);
D. date of birth;
E. any other particulars shown on their identity card or disc;
F. date and place of capture or death;
G. particulars concerning wounds or illness or cause of death. 
Mexico, Manual de Derecho Internacional Humanitario para el Ejército y la Fuerza Área Mexicanos, Ministry of National Defence, June 2009, § 93.
In a section on the 1949 Geneva Convention III, the manual also states: “Death certificates [of prisoners of war] must be forwarded as rapidly as possible to the respective Prisoner of War Information Bureau.” 
Mexico, Manual de Derecho Internacional Humanitario para el Ejército y la Fuerza Área Mexicanos, Ministry of National Defence, June 2009, § 199.