Dr Douglas Guilfoyle studied at Cambridge in 2003-2007 and is now a lecturer at UCL, where his teaching includes international law of the sea and international criminal law. Prior to undertaking graduate study and research Douglas worked as a judge’s associate in the Federal Court of Australia and as associate to the President of the Australian Administrative Appeals Tribunal. He has also worked as a litigation solicitor in Sydney. His major research interest is high-seas law enforcement and a book based on his doctoral research, Shipping Interdiction and the Law of the Sea (2009), was published as part of the Cambridge Studies in International and Comparative Law series. He was commissioned by the legal issues working group of the inter-governmental Contact Group on Piracy of the Coast of Somalia to produce an expert report on treaty law jurisdiction over pirates in 2009.