a) To nullify the November 12, 1999, judgment issued by the Criminal Court of the First Judicial Circuit of San José (operative paragraph four of the Judgment). The State has paid the principal sum related to the civil compensation judgment, leaving pending that which refers to the difference regarding the interest and costs in accordance with Considering Clause 18 of the […] Order. b) To bring its domestic legal system in to line with the combined provisions of Article 2 and 8(2)(h) of the American Convention on Human Rights (operative paragraph five of the Judgment). 3. The briefs of October 15, 2009, May 31 and November 17, 2010 and their respective annexes, through which the Republic of Costa Rica (hereinafter “the State” or “Costa Rica”) informed about the progress with regard to compliance with the outstanding points of the Judgment. 4. The briefs of November 27, 2009 and October 26, 2010, through which the representatives of the victim (hereinafter “the representatives”) submitted their observations to the reports presented by the State. 5. The briefs of December 3, 2009, August 4 and November 8, 2010, through which the Inter-American Commission on Human Rights (hereinafter “the Inter-American Commission” or “the Commission”) issued its observations to the reports presented by the State and to the observations of the representatives. 6. The amicus curiae briefs and their annexes presented by the following persons: José Tomás Guevara Calderón, William Bermúdez Bolívar, José Francisco Corrales Gutiérrez, Heriberto Hidalgo Segura, Manuel Antonio Coto Aguirre, Marco Vinicio Picado González, Juan José Maltés Montiel, José Ruiz Pérez, Ángel Aragón Calderón, Rafael Antonio Rojas Madrigal, Jorge Rodríguez Sánchez and J.A. Coto Aguirre. CONSIDERING: 1. Monitoring compliance with its decisions is a power inherent to the jurisdictional functions of the Court. 2. Costa Rica is a State Party to the American Convention on Human Rights (hereinafter “the American Convention” or “the Convention”) since November 22, 1969 and recognized the adjudicatory jurisdiction of the Inter-American Court on July 2, 1980. 3. Article 68.1 of the American Convention stipulates that “[t]he State Parties to the Convention promise to comply with the decision of the Court in any case to which they are parties.” Therefore, the States must ensure that decisions of the Tribunal are implemented