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.
International Criminal Tribunal for the Former Yugoslavia (ICTY)
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.
International Criminal Tribunal for Rwanda (ICTR)
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 Neighboring States between 1 January and 31 December 1994.
International Residual Mechanism for Criminal Tribunals (UNMICT)
- UN Mechanism for International Criminal Tribunals websiteThe International Residual Mechanism for Criminal Tribunals ("Mechanism") is mandated to perform a number of essential functions previously carried out by the International Criminal Tribunal for Rwanda (“ICTR”) and the International Criminal Tribunal for the former Yugoslavia (“ICTY”). In carrying out these essential functions the Mechanism maintains the legacies of these two pioneering ad hoc international criminal courts and strives to reflect best practices in the field of international criminal justice.
It is also possible to search all via the Unified Court Records database. The Unified Court Records (UCR) database provides access to the public court records of the ICTR, the ICTY and the IRMCT.

The Extraordinary Chambers in the Courts of Cambodia (ECCC) were established under an agreement between the Royal Government of Cambodia and the United Nations.
With the support of the international community, the ECCC investigated crimes that occurred between 17 April 1975 and 6 January 1979 and assisted the people of Cambodia in their pursuit of justice, national reconciliation, and peace.