E/CN.4/1998/38/Add.2 page 3 5. In order to interview prisoners who had allegedly been tortured, the Special Rapporteur visited the Federal Social Rehabilitation Centre (CEFERESO) of Almoloya de Juárez, the Social Rehabilitation Centre (CERESO) of Chilpancingo and the women's sector of the Northern Preventive Prison of the Federal District, and also met the authorities in charge. 6. The Special Rapporteur thanks the Government of Mexico for allowing him to make this visit and for its valuable collaboration, which greatly facilitated his task. I. THE PRACTICE OF TORTURE: SCOPE AND CONTEXT Information submitted by non-governmental sources 7. Before and during his visit to the country, the Special Rapporteur received a great deal of information from non-governmental sources to the effect that torture continued to be a common practice. The majority of cases, however, are not reported to the authorities due to ignorance, limited means of substantiating the case, mistrust on the part of the victims in institutions or fear of reprisals. A selection of approximately 116 cases, which reportedly occurred between January 1996 and September 1997, is given in the annex to this report. 8. The sources indicated that the most common cases were those occurring in the course of crime investigations. The legal instruments promulgated in recent years, to which the Special Rapporteur will refer below, have not been successful in eliminating the use of torture, which apparently continues to be common among the judicial police forces. In addition, responsibility for cases of torture has often been attributed to the army, as the annex shows. On the pretext of a rise in the crime rate in the country and a social demand for greater public security, the Government introduced a series of legal amendments allowing the armed forces to intervene in areas which pertain to the civil authorities, such as public security and the prosecution of certain offences. As a result, the armed forces intervene in the investigation and prosecution of offences such as terrorism, smuggling and illegal trafficking in persons, arms and drugs, despite the fact that article 21 of the Constitution provides that the investigation and prosecution of offences is the province of the Public Prosecution Department. 9. It was reported that in order to justify this role of the armed forces, it has been argued that they assist the civil authorities, although in actual fact they are not subordinate to the latter. They undertake duties on their own account which are the province of the Public Prosecutor, such as arresting and interrogating suspects, carrying out searches without a warrant and setting up checkpoints on roads and other ways of communication on the pretext of looking for drugs or weapons. This is contrary to article 129 of the Constitution, whereby in peacetime no military authority may engage in duties other than those which are directly related to military discipline. However, in March 1996 the Supreme Court when examining a remedy of unconstitutionality filed with regard to the army's participation in public security activities, ruled that the army could, if expressly requested by the civil authorities,

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