Соответствующая норма
Mexico
Practice Relating to Rule 100. Fair Trial Guarantees
Section J. Compelling accused persons to testify against themselves or to confess guilt
Mexico’s Army and Air Force Manual (2009), in a section on the 1949 Geneva Convention III, states: “Judicial procedure must be regular, that is, it must include at least the following guarantees … the accused must not be coerced into confessing”. 
Mexico, Manual de Derecho Internacional Humanitario para el Ejército y la Fuerza Área Mexicanos, Ministry of National Defence, June 2009, § 191.
In a section on the obligations of the occupying power under the 1949 Geneva Convention IV, the manual also states:
C. Judicial procedure must be regular, that is, it must include at least the following guarantees:
d. the accused must not be coerced into confessing. 
Mexico, Manual de Derecho Internacional Humanitario para el Ejército y la Fuerza Área Mexicanos, Ministry of National Defence, June 2009, § 238(C)(d).
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. The minor … [has] the right … to refuse to make a statement.” 
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.