The UN has been involved with several tribunals established to bring justice to victims of international crimes. The Security Council established two ad hoc tribunals, the ICTY and the ICTR. The UN has also been involved in various ways with the Special Court for Sierra Leone (SCSL), the Extraordinary Chambers in the Courts of Cambodia (ECCC), and others. While transitional justice and rule of law continue to be important to the UN, it is likely that the International Criminal Court will handle most situations that arise in the future. There are many secondary sources of information that can support research on various aspects of the work of the tribunals.
Formal name: International Criminal Tribunal for the Prosecution of Persons Responsible for Serious Violations of International Humanitarian Law Committed in the Territory of the Former Yugoslavia since 1991.
Formal name: International Criminal Tribunal for the Prosecution of Persons Responsible for Genocide and Other Serious Violations of International Humanitarian Law Committed in the Territory of Rwanda and Rwandan Citizens Responsible for Genocide and Other Such Violations Committed in the Territory of Neighbouring States between 1 January and 31 December 1994.
The work of the ICTY and ICTR will soon be completed, however some tasks, including archiving of the case materials, will be carried out by a new body, the International Residual Mechanism for Criminal Tribunals. This body calls itself the UN Mechanism for International Criminal Tribunals (UNMICT).
Because this is a new body, and the Tribunals are still completing their work, it is not yet clear how much of the ICTY and ICTR website functions will be carried out by the Residual Mechanism.
Khmer Rouge Tribunal documents can be located via this link: http://www.yale.edu/cgp/news.html
Source: United Nations Dag Hammerskjold's research guide on international law.