The most recent statement of the elements of the right to a fair trial appear in the Statute of the International Criminal Court. The United Nations, however, has also produced a body of guidelines on the administration of justice.
https://www.icc-cpi.int - International Criminal Court
unictr.unmict.org/ - The International Criminal Tribunal for Rwanda (legacy website)
http://www.icty.org/ -The International Criminal Tribunal for the former Yugoslavia
irmct.org - UN Mechanism for International Criminal Tribunals
www.echr.coe.int - European Court of Human Rights
www.corteidh.or.cr - Inter-American Court of Human Rights