E/CN.4/1993/26 page 74 Information transmitted to the Government regarding individual cases 316. Agustín Diego García, Odilon García Serafín, Abraham Miguel Prudencio, Efrein Miguel Prudencio, Alberto Martínez Hernández and Daniel Muez García, all members of the Indian community of La Trinidad Yaveo, Santiago Yaveo, Choapán, Oaxaca were arrested by the state police and judicial police on 25 January 1992. They were taken to the María Lombardo police barracks and badly beaten. Alberto Martínez's head was banged against the wall and he and Daniel Muez had their hands burnt with hot wax. 317. In this connection the Government states that investigation by the National Human Rights Commission did not produce evidence of the torture described. In statements in court prisoners stated their hands had been injured by a stinging liquid. This seems to have been the effect of a test used by the state prosecutor's office to detect traces of gunpowder on the hands. 318. Rubén Díaz Díaz, Italo Ricardo Díaz Díaz, Rey Venegas Castro and Delfino de Jesús Aguilar Hernández were arrested by the judicial police in the Federal District on 7 June 1991. They were taken first to the Alvaro Obregón office of the traffic and safety agency and later to the offices of the Federal District public prosecutor's department. They were severely beaten over a period of days, given electric shocks and had Tehuacan water squirted in their nostrils to make them confess to various crimes and membership in the clandestine workers' revolutionary party union of the people. Threats were made to kill them and torture their families. 319. The Government stated that the National Human Rights Commission had been unable to complete the file on the case because the complainants' representatives had not supplied all the documentation required. Support was however being given to the representatives in the criminal proceedings. 320. David Cabañas Barrientos, Ana María Vera Smith and Blanca Lirio Muro Gampoa were arrested by the Federal District judicial police on 12 June 1990. For a period of seven days they were subjected to repeated death threats, severely beaten, brought to the brink of suffocation by plastic bags placed over their heads and immersion of the head in water, given electric shocks and burnt with cigarettes. As a result of the torture during interrogation, the effects of which persisted for years, Mr. Cabañas Barrientos signed a statement in which he accused the ex-rector of Benito Juárez and Oaxaca autonomous university and leader of the people's national democratic front, Dr. Felipe Martinez Soriano, of murder. In consequence Dr. Martinez Soriano was sentenced to nine years in prison. 321. The Government stated that as a result of the National Human Rights Commission's efforts the confinement and segregation of the persons mentioned in north remand prison had been suspended and they had been helped to obtain medical assistance. The Commission had been unable to complete the file because the complainants' representatives had not brought forward the required documentation. They were however being given support in the criminal proceedings.