8 Santiago Cantón, advisor Debora Benchoam, advisor Alberto A. Borea Odría, assistant Elliot Abrams, assistant Viviana Krsticevic, assistant, and María Claudia Pulido, assistant; as witnesses proposed by the Inter-American Commission: Baruch Ivcher Bronstein Fernando Viaña Villa Luis Carlos Antonio Iberico Núñez Julio Genaro Sotelo Casanova Rosario Beatriz Lam Torres Emilio Rodríguez Larraín Salinas Luis Pércovich Roca, and Fernando Rospigliosi Capurro; and as an expert proposed by the Inter-American Commission: Samuel Abad Yupanqui. Although they had been summoned, the witnesses Alejandro Miró Quesada Cisneros, Leonor La Rosa Bustamante, Nicolás de Bari Hermoza Ríos, Vladimiro Montesinos Torres, Víctor Huamán del Solar, Percy Escobar and Enrique Oliveros Pérez, and the expert Gustavo Gorriti Ellenbogen, all proposed by the Commission, did not appear at the public hearing. César Hildebrandt Pérez Trevi��o, also proposed by the Commission, informed the Court that he was unable to appear at the hearing. Although it had been summoned, the State did not appear (infra para. 78). At the start of the public hearing, the President read Article 27 of the Court’s Rules of Procedure, which authorizes the Court to proceed with the hearing, on its own motion, in the absence of one of the parties (infra para. 79). 45. On November 29, 2000, on the instructions of the Court, the Secretariat requested the Commission to submit the documentary evidence justifying the request for payment of costs and expenses submitted in the application brief by December 13 that year, at the latest. On December 12, 2000, the Commission requested an extension of the period, and, following the instructions of the President, an extension was granted until January 8, 2001. 46. On December 15, 2000, on the instructions of the President, the Secretariat requested the parties to file their final written arguments on the case by January 8, 2001, at the latest. 47. On January 8, 2001, the Commission submitted its final written arguments. The same day, it submitted its arguments on expenses and costs, and on January 10, 2001, the attachments thereto were received by the Secretariat, and were forwarded to the State, requesting it to submit its comments on them by January 24, 2001, at the latest. 48. Peru did not submit final written arguments.