Related Rule
Mexico
Practice Relating to Rule 100. Fair Trial Guarantees
Section H. Assistance of an interpreter
Mexico’s Army and Air Force Manual (2009), in a section on the obligations of the occupying power under the 1949 Geneva Convention IV, states: “The rights of defence are recognized and guaranteed in that the accused has the right … to call on the services of an interpreter.” 
Mexico, Manual de Derecho Internacional Humanitario para el Ejército y la Fuerza Área Mexicanos, Ministry of National Defence, June 2009, § 238(c).
In 2006, during the consideration of the third periodic report of Mexico by the Committee on the Rights of the Child, a representative of Mexico stated: “The rights to a defence and a fair hearing and all rights related to due process … [are] respected. … There … [are] interpreters for children who … [do] not speak Spanish.” 
Mexico, Statement before the Committee on the Rights of the Child during the consideration of the third periodic report of Mexico, 1 June 2006, UN Doc. CRC/C/SR.1141, § 18.