14 that assumed the functions of the executive, legislative and judicial powers and also exercised the constituent power. 47. During the dictatorship of Luis García Meza, a policy of intimidation, harassment and extermination was implemented against members of the Revolutionary Leftist Movement [MIR] and any group of persons, political or union organization that could constitute opposition, albeit peaceful, to the purposes of the Military Junta. The security forces and the paramilitary groups acting on instructions from and in the charge of the Ministry of the Interior commited serious human rights violations in an environment surrounded by impunity on the part of State authorities. 48. In this context, thousand of persons were detained without respecting the requirements of the Constitution and a regular practice of unlawful duress and tortures was developed, especially during interrogation. The following were the principal methods used to conduct interrogations: blindfolded prisoners are beaten; electric shocks; intimidation of the prisoner or members of his family; mock executions; cigarette burns; psychological duress and sexual abuse. These abuses have occurred, among other places, in the facilities of the Army Intelligence Services (Miraflores headquarters); at the headquarters of the Division of Political Order (DOP) and in offices of the Ministry of the Interior. 49. After the return to democracy in 1982, it was agreed by consent to investigate the crimes committed during the de- facto government of General Luis García Meza. The investigations conducted made it possible for the National Congress to bring charges against him before the Supreme Court of Justice on February 25, 1986. The Supreme Court found General Luis Garcia Meza, Colonel Luis Arce Gómez and their collaborators responsible for the commission of eight groups of crimes: Sedition and restriction on the rights of the people; armed upbringing; organization of irregular armed groups; adoption of orders against the Constitution and law; deprivation of liberty; attempt against the right to freedom of the press; illegal advantages and violation of the autonomy of the University. The condemnatory judgment established that the actions done during the de-facto regime were "prepared and planned acts". In said judgment, Renato Ticona Estrada is mentioned in the partial list of disappeared people.27 Forced disappearance of Renato Ticona 50. Renato Ticona was born on November 12, 1954 in Sacaca, Potosí (Bolivia) and at the moment of his disappearance, he was 25 years old.28 He had a Diploma in Humanities issued by the Technical University of Oruro, Bolivia and he worked as a music teacher in Escuela Mariano Baptista.29 Furthermore, he was attending the seventh semester of Agricultural Engineering at the School of Agricultural and Livestock Sciences of the Technical University of Oruro.30 27 Cf. Judgment delivered by the Supreme Court of Justice in the trials of responsibility initiated by the Office of the Public Prosecutor and collaborating parties against Luis García Meza and his cohorts, of April 21, 1993 - Sucre, Bolivia (Appendices to the answer of the complaint, Appendix 3, Volume 4, p. 2853) 28 Cf. Birth certificate of Renato Ticona Estrada issued on April 6, 2002 by the National Electoral Court, Civil Registry, Bolivia (appendices to the application, appendix 3, volume I, p. 959). 29 Cf. Certification of Escuela Mariano Baptista, rendering of services in the field of Education of the Basic course, of May 30, 1978 (Appendices to the brief of requests and motions, Appendix 10, p. 1833). 30 Cf. Certificate UTO.FCAP.CERT Nº 042/04 of January 23, 2004, issued by the School of Agricultural and Livestock Sciences of the Technical University of Oruro (Appendices to the brief of requests and motions, Appendix 15, p. 1843).