Related Rule
Practice Relating to Rule 161. International Cooperation in Criminal Proceedings
Section B. Extradition
In the decision in the trial of first instance in the Cavallo case in 2001, a Mexican court allowed the extradition, on the request of a Spanish judge, of Ricardo Miguel Cavallo, a former military officer of Argentine citizenship charged with committing acts of genocide, torture and terrorism during the 1976–1983 “dirty war” in Argentina. The Court’s decision was based, inter alia, on the principle of universal jurisdiction. 
Mexico, Federal Court of the First Circuit, Cavallo case, Decision, 11 January 2001.
In 2001, with regard to the Cavallo case, the Mexican Foreign Relations Secretariat issued a directive on this matter, stating:
Based on Article 28, part XI, of the Federal Public Administration Law and in conformity with articles 30 of the International Law of Extradition, and articles 1, 9, 14 and 25 of the Treaty of Extradition and Mutual Assistance on Criminal Matters between the United Mexican States and the Kingdom of Spain, it is resolved: … to grant the extradition of the individual in question, Ricardo Miguel Cavallo, known as Miguel Angel Cavallo, requested by the government of Spain through its embassy in Mexico, to face charges of genocide, torture and terrorism. 
Mexico, Ministry of Foreign Affairs, Communication No. 021/01, The Ministry of Foreign Affairs grants Spain’s Request to extradite Ricardo Miguel Cavallo, Directive of 2 February 2001, § 2.