The Prosecutor of the International Criminal Court (ICC) reported in February 2006 that he had received 240 communications in connection with the invasion of Iraq in March 2003 which alleged that various war crimes had been committed. The overwhelming majority of these communications came from individuals and groups within the United States and the United Kingdom. Many of these complaints concerned the British participation in the invasion, as well as the alleged responsibility for torture deaths while in detention in British-controlled areas.
On February 9, 2006, the Prosecutor, Luis Moreno-Ocampo, published a letter that he had sent to all those who had communicated with him concerning the above, which set out his conclusions on these matters, following a preliminary investigation of the complaints. He explained that two sets of complaints were involved:
Australia, Poland and the UK are all state parties to the Rome Statute which established the International Criminal Court and therefore their nationals are liable to prosecution by the court for the violation of any relevant international criminal laws. Because the United States is not a state party, Americans cannot be prosecuted by the court (except for crimes that take place in the territory of a state that has accepted the court's jurisdiction, or situations that are referred to the court by the United Nations Security Council, where the US has a veto).