6 representatives, and the other two proposed by the representatives; b) four witnesses; one proposed jointly by the Commission and representatives, one proposed by the representatives, and the other two by the State; c) the expert reports of two experts; one proposed by the Commission, one by the State, as well as; d) the final oral arguments of the parties on the preliminary objections and eventual merits, reparations, and costs.7 7. The public hearing was held on May 20 and 21, 2010, during the LXXXVII Ordinary Period of Sessions of the Court, held at the seat of the Court.8 8. On the other hand, the Court received eight amicus curiae briefs from the following persons and institutions:9 a) Open Society Justice Initiative, Commonwealth Human Rights Initiative, Open Democracy Advice Centre and South African History Initiative, in relation with the right to truth and access to information;10 b) Grupo de Investigación de Derechos Humanos en la Amazonía [Human Rights Investigation Group in the Amazon], in regard to the Amnesty Law;11 c) Order of Attorneys of Brazil, section of Rio de Janeiro, on inter alia, the effects of the eventual condemnatory judgment of the Inter-American Court and the decision issued in the Arguicão de Descumprimento de Preceito Fundamental No. 153 (Non-compliance Action of the Fundamental Principle No. 153) (hereinafter, Non-compliance Action of the Fundamental Principle No. 153” or “Non-compliance Action No. 153”);12 d) the Grupo de Ensino, Pesquisa e 7 Cf. Case of Gomes Lund et al. (“Guerrilha do Araguaia”) v. Brazil. Summons to a Public Hearing, supra note 6, Operative Paragraph 4. 8 At this hearing, the following were present: a) for the Inter-American Commission: Felipe González, Commissioner; Santiago Canton, Executive Secretary; Catalina Botero, Special Rapporteur for Freedom of Expression, and Lilly Ching Soto, Leonardo Hidaka, and Alejandra Negrete, legal assistants; b) by the representatives: Viviana Krsticevic, Beatriz Affonso, and Helena Rocha, of CEJIL, and Victoria Lavínia Grabois Olímpio, of the Group on Torture Never Again of Rio de Janeiro, and c) for the State: Hildebrando Tadeu Nascimento Valadares, Ambassador of Brazil in Costa Rica; Gláucia Silveira Gauch, Carlos Eduardo da Cunha Oliveira, Camilla Serrano Giunchetti, Mauricio Candeloro, Rodrigo Wanderley Lima, and Francisco Samuel Barzotto of the Ministry of Foreign Affairs; Cristina Timponi Cambiaghi and Bartira Meira Ramos Nagado, of the Human Rights Secretariat of the Presidency of the Republic; Sérgio Ramos de Matos Brito, and Ana Claudia de Sousa Freitas, of the Attorney General of the Union; Mauro Almeida Noleto, of the Ministry of Justice; Paulo Massi Dallari, of the Civil House; Celia Cristina Whitaker, of the Special Secretariat on Human Rights of the Municipality of São Paulo; Bruno Correia Cardoso, of the Ministry of Defense; Gerson Menandro, of the Brazilian Army; Miguel Alejandro Gutiérrez Pizarro, of the Brazilian Embassy in Costa Rica, and Manoel Lauro Volkmer de Castilho, assistant. Before the celebration of such public hearing, on May 6, 2010, Brazil requested, inter alia, to postpone the public hearing for the next period of sessions of the Court, and to divide the hearing into two parts, one for the preliminary objections, and the other for the merits. Alternatively, in the case that such request would not be admitted, the State requested that the public hearing called for May 20 and May 21, 2010, only be for preliminary objections. After considering the observations of the Commission and of the representatives, the Court did not admit the request of the State (case file on the merits, tome VI, folios 2709 and 2710). 9 The Court received other briefs that were time-barred or were not useful or related to the objective of the present case, and as such, they are not admitted nor mentioned in the present judgment. 10 The brief was received by the Secretariat of the Court on June 7, 2010, and is signed by James A. Goldston and Darian K. Pavli of the Open Society Justice Initiative; Maja Daruwala of Common Wealth Human Rights Initiative; Alison Tilley of the Open Democracy Advice Centre, and Catherine Kennedy of the South African History Archive. The copies of said brief in its English and Spanish versions were received on June 3 and 4, 2010, respectively, while the Portuguese version was received on July 12, 2010. 11 The brief and its annexes were received by the Secretariat of the Court on June 4, 2010. The brief is signed by Sílvia Maria da Silveira Loureiro and Jamilly Izabela de Brito Silva. 12 The brief and its annexes were received by the Secretariat of the Court on June 10, 2010, and is signed by Guilherme Peres de Oliveira, Ronaldo Cramer, and Wadih Damous. A copy of said brief was received on June 4, 2010.