10 Ibsen Cárdenas and José Luis Ibsen Peña; the measures carried out to determine their whereabouts; the alleged lack of will on the part of the State to investigate the alleged disappearances; and the consequences of these situations, among other things. b) Rebeca Ibsen Castro. Alleged victim. Declaration proposed by the representatives. Rendered a statement regarding, the alleged disappearance of Messrs. Rainer Ibsen Cárdenas and José Luis Ibsen Peña; the measures carried out to determine their whereabouts; the alleged lack of will on the part of the State to investigate the alleged disappearances; the obstacles that she allegedly faced in her search for the truth regarding the alleged disappearances and the punishment of those responsible; and the consequences of these situations, among other things. c) Renato Estevan Díaz Matta. Witness. Declaration proposed by the InterAmerican Commission and the representatives. Rendered a statement on Rainer Ibsen Cárdenas's experiences in a detention center of La Paz, Bolivia; José Luis Ibsen Peña's experiences in a detention center of Santa Cruz, Bolivia; and the dialogue the witness allegedly sustained with both alleged victims, among other things. d) Hilda Saavedra Serrano and Ledy Catoira Moreno. Witnesses. Declarations proposed by the representatives. Rendered statements on the alleged deprivation of Rainer Ibsen Cárdenas’s liberty at different detention centers of La Paz; the alleged acts of torture committed by agents of the State; the circumstances and events surrounding Rainer Ibsen Cárdenas’s alleged murder and subsequent forced disappearance; and the alleged bad faith in the handling of public reports, among other things. e) Juan Cristóbal Soruco Quiroga. Expert witness. Licensed in Social Communication and Director of Los Tiempos de Cochabamba newspaper. Expert opinion proposed by the Inter-American Commission. Referred to the context in which the facts of the case occurred and, in particular, to the human rights situation during the military dictatorship of Hugo Banzer Suárez, among other things. 41. Regarding the evidence rendered at the public hearing, the Court heard the statements and expert opinions of the following persons: a) Tito Ibsen Castro. Alleged victim. Declaration proposed by the Inter-American Commission and the representatives. Rendered a statement regarding the alleged forced disappearance of Rainer Ibsen Cárdenas and José Luis Ibsen Peña; the measures carried out to determine their whereabouts; the alleged lack of will on the part of the State to investigate the alleged disappearances; and the consequences of these situations, among other things. b) Delia Cortez F. Witness. Declaration proposed by the State. Rendered a statement regarding, inter alia, the bodily remains allegedly belonging to Rainer Ibsen Cárdenas that were found in 1983; the search for the remains of Mr. José Luis Ibsen; as well as the remains found in clandestine graves in the 1980s and buried in the Mausoleum of ASOFAMD, according to information published in 1983 by the National Commission for the Investigation of Persons Forcibly Disappeared.