Judge David Re was appointed by the UN Secretary-General as an international judge of the Special Tribunal for Lebanon in The Hague, the Netherlands (STL) in 2010, and is the Presiding Judge of its Trial Chamber, which is hearing the first international terrorism trial. Four persons are accused of assassinating the former Prime Minister of Lebanon, Mr Rafik Hariri, and others, and injuring hundreds in an explosion in Beirut in 2005. Between 2008 and 2010, Judge Re was an international judge of the Court of Bosnia and Herzegovina in its war crimes chamber in Sarajevo, where he sat on war crimes and genocide trials. He has also jointly taught a course on International Criminal Law in the LLM program at the Australian National University.
From 2002 to 2008, Judge Re was a prosecutor at the International Criminal Tribunal for the former Yugoslavia (ICTY) in The Hague, the Netherlands. He worked on seven trials, including as the lead prosecutor in a war crimes and crimes against humanity case against the former Prime Minister of Kosovo, Ramush Haradinaj and two others. He also appeared in a shelling case against a Yugoslav general for destroying parts of the UNESCO listed Old Town of Dubrovnik, Croatia, (Strugar) in two command responsibility cases against Bosnian generals for crimes committed in Central Bosnia, and against Serb municipal leaders for crimes against humanity in northern Bosnia and Herzegovina (Simić). Additionally, he worked on the case against the former Serbian President, Slobodan Milošević, and was the lead pre-trial prosecutor against the Chief of Serbian State Security for crimes charged in Bosnia and Herzegovina and Croatia (Stanišić and Simatović).