A/HRC/4/84 page 7 14. In March 2006, the Government of Colombia launched a policy to fight impunity (Decree 3411). This policy recognizes the grave problem of impunity in Colombia and contains measures to combat it. The office in Colombia of OHCHR assisted the policymakers in its formulation of the policy and is a key observer in its implementation. In addition, the office in Colombia, in cooperation with the European Commission, has a technical cooperation programme aimed at enhancing the capacity of the Attorney General’s Office to fight impunity. 15. Furthermore, during 2006, the Colombian Supreme Court opened an investigation against nine members of the Congress accused of grave violations of human rights, links with paramilitaries and corruption. The office in Colombia of OHCHR has followed the above developments. 16. At the same time, the Attorney General’s Office continued to investigate members of the security forces, particularly the army, accused of committing extrajudicial executions. OHCHR Colombia has followed developments in these cases. 17. On 18 May 2006, the Constitutional Court decided that some major aspects of Law 975/05, known as the Justice and Peace Law, should be modified. The office in Colombia of OHCHR presented an amicus curiae brief before the court, in which the High Commissioner outlined the international human rights obligations of Colombia guaranteeing victims’ rights to the truth, justice and reparation. The court decided that some aspects of the law as pointed out by the office in Colombia should be modified. 18. In Guatemala in December 2006, the Government and the United Nations signed an agreement to create an International Commission Against Impunity in Guatemala (CICIG) to support the Office of the Public Prosecutor and other State institutions to investigate and dismantle illegal security forces and other clandestine organizations that are implicated in criminal activities as well as human rights violations in the country. This initiative was welcomed by the High Commissioner, whose office in Guatemala has provided advice to the Government on judicial issues connected with the establishment of the Commission. The OHCHR office in Guatemala also advised the Government on the elaboration of the recently adopted legislation establishing the National Institute of Forensic Science. This institute is expected to play a crucial role in combating impunity, in relation to past as well as ongoing human rights violations. 19. Furthermore, OHCHR has been supporting and advising the authorities charged with combating impunity in Guatemala, in particular the Unit on Special Investigations of the Human Rights Ombudsman, which deals with some investigations related to gross human rights violations during the armed conflict, and the Office of the Public Prosecutor. The office in Guatemala has been also training the staff of the Unit which deals with past human rights violations on the normative framework for the prosecution and punishment of extrajudicial executions. It has also been closely involved in the drafting of a new Law on the establishment of a National Fact-finding Commission on Disappearances, through supporting the Preparatory Commission composed of State institutions and civil society organizations that was tasked with elaborating a proposal to that end. The High Commissioner is encouraging the Guatemalan Congress to approve that law, and also to approve legislation that recognizes the legal status of absence due to forced disappearance.