Practice Relating to Rule 89. Violence to Life
Mexico’s Army and Air Force Manual (2009) states: “The States party to the  Geneva Conventions undertake to: … prohibit … summary executions [and] extermination.”
In a section on the 1949 Geneva Convention I, the manual also states:
Members of the armed forces and other persons who are wounded or sick must be respected and protected in all circumstances … Any attempts upon their lives or violence to their persons are strictly prohibited; in particular, they must not be murdered.
The manual also states that Article 3 common to the 1949 Geneva Conventions prohibits “the carrying out of executions without previous judgment”.
Mexico’s IHL Guidelines (2009) states: “War crimes
include the wilful killing of civilians … and enemy combatants who are rendered hors de combat
or have surrendered … , [and] the … execution of hostages”.
Mexico’s Penal Code (1931), as amended to 2000, provides for the punishment of the killing, as a part of a genocide campaign, of a member of a national, ethnic, racial or religious group.
In its written statement submitted to the ICJ in the Nuclear Weapons (WHO) case
in 1994, Mexico stated that both conventional and customary international law guaranteed the right to life.
In 2009, during a debate in the UN Security Council on children and armed conflict, the permanent representative of Mexico stated: “We condemn all acts that jeopardize the integrity of children, such as … killing”.