Related Rule
Mexico
Practice Relating to Rule 103. Collective Punishments
Mexico’s Army and Air Force Manual (2009), in a section on the 1949 Geneva Convention III, states: “Collective punishment for individual acts is forbidden”. 
Mexico, Manual de Derecho Internacional Humanitario para el Ejército y la Fuerza Área Mexicanos, Ministry of National Defence, June 2009, § 185.
In a section on the 1949 Geneva Convention IV, the manual also states: “Collective penalties and all measures of intimidation … are prohibited.” 
Mexico, Manual de Derecho Internacional Humanitario para el Ejército y la Fuerza Área Mexicanos, Ministry of National Defence, June 2009, § 380.