State immunity, the idea that a state, including its individual organs, officials and other emanations, may not be proceeded against in the courts of another state in certain instances, has long been and remains a source of international controversy. Although customary international law no longer recognizes the absolute immunity of states from foreign judicial process, the evolution of the contemporary notion of restrictive state immunity over the past fifty years has been an uncoordinated and contested process, leading to disputes between states. The adoption, in 2004, of the United Nations...