67 11. Finds that the State violated articles 1(1) and 2 of the American Convention on Human Rights. Unanimously 12. Finds that the violation of Article 51(2) of the American Convention on Human Rights alleged in the instant case need not be examined. Unanimously 13. Finds the proceedings conducted against Mr. Jaime Francisco Sebastián Castillo Petruzzi, Mrs. María Concepción Pincheira Sáez, Mr. Lautaro Enrique Mellado Saavedra and Mr. Alejandro Luis Astorga Valdez are invalid, as they were incompatible with the American Convention on Human Rights, and so orders that the persons in question be guaranteed a new trial in which the guarantees of due process of law are ensured. Unanimously 14. Orders the State to adopt the appropriate measures to amend those laws that this judgment has declared to be in violation of the American Convention on Human Rights and to ensure the enjoyment and exercise of the rights recognized in the American Convention on Human Rights to all persons subject to its jurisdiction, without exception. Unanimously 15. Orders the State to pay a sum totaling US$10,000.00 (ten thousand United States dollars), or its equivalent in Peruvian national currency, to those next of kin of Mr. Jaime Francisco Sebastián Castillo Petruzzi, Mrs. María Concepción Pincheira Sáez, Mr. Lautaro Enrique Mellado Saavedra and Mr. Alejandro Luis Astorga Valdez who show proof of having incurred costs and expenses by reason of the instant case. The procedure followed shall be the one described in paragraph 224 of this Judgment. Unanimously 16. Decides to oversee compliance with the orders given in this Judgment. Judge Vidal-Ramírez informed the Court of his Partially Concurring and Partially Dissenting Opinion. Judge de Roux-Rengifo informed the Court of his Concurring Opinion. Both are attached to this Judgment. Done in Spanish and English, the Spanish text being authentic, in San José, Costa Rica, on May 30, 1999. Hernán Salgado-Pesantes President Antônio A. Cançado Trindade Máximo Pacheco-Gómez