was immediately appointed as prosecuting counsel with the ICTY. In 2001 he was appointed a Senior Trial Attorney of the International Criminal Tribunal for the Former Yugoslavia by Carla Del Ponte, Prosecutor of the ICTY. In that capacity he was responsible for the case against General Ratko Mladic and led the first prosecution of members of the Kosovo Liberation Army. In February 2005 he was appointed Senior Trial Attorney at the International Criminal Court by the Prosecutor Luis Moreno Ocampo. In 2007 after filing the first case for war crimes and crimes against humanity in Darfur he departed from the ICC and was immediately instructed by Mr. Ivan Cermak to defend him in his case before the International Criminal Tribunal for the former Yugoslavia and by the former President of Liberia Charles Taylor in his defence before the Special Court for Sierra Leone. From 2009 to 2013 Cayley was Chief International Co-Prosecutor of the Extraordinary Chambers in the Courts of Cambodia, the Khmer Rouge Tribunal, where he led for the United Nations on the prosecution of the former leadership of the Khmer Rouge for the genocide, extermination and murder of up to two million of their own citizens in Cambodia between 1975 and 1979. As Director Service Prosecutions, between 2013 and 2020, he was the United Kingdom's Chief Military Prosecutor. In this role he was responsible for the prosecution of members of the Royal Navy, Army and Royal Air Force for serious criminal and service disciplinary offences. He led the legal team which succeeded in closing the International Criminal Court's Preliminary Examination of allegations of war crimes by British Forces in Iraq from 2003 to 2009. Cayley was appointed King’s Counsel in 2012. He was appointed Companion of the Order of St Michael and St George (CMG) in the 2014 Birthday Honours for services to international criminal law and human rights. Also in 2014 he became a governing Bencher of the Honourable Society of the Inner Temple. He was appointed Fellow of the Royal Society of Arts in 2017. He is a member of Temple Garden Chambers. Footnotes External links International Criminal Court 1964 births British solicitors British barristers Members of the Inner Temple British King's Counsel Living people People educated at Brighton College Alumni of University College London Companions of the Order of St Michael and St George Army Legal Corps officers Khmer Rouge Tribunal prosecutors