Professor Neil Boister, Ph.D (1998), is Professor of Criminal law at the University of Canterbury in Christchurch New Zealand. Author of a range of texts on transnational criminal law including An Introduction to Transnational Criminal Law (Second edition forthcoming OUP, 2018) in 2014 he was awarded the Friedrich Wilhelm Bessel Prize from the Alexander von Humboldt Foundation in Germany for his work on transnational criminal law. Mikkel Jarle Christensen is an associate professor in the Danish National Research Foundation’s Centre of Excellence for International Courts (iCourts) hosted by the Faculty of Law, University of Copenhagen. He is also senior researcher in the Global Justice Lab at the Munk School of Global Affairs, University of Toronto. He has published on the sociology of law in the fields of policing, international and transnational criminal justice and has recently co-edited an innovative volume that links these fields: International Practices of Criminal Law: Social and Legal Perspectives (with Ron Levi, Routledge 2017).