David Dyzenhaus is a professor of Law and Philosophy at the University of Toronto, and a Fellow of the Royal Society of Canada. He holds the Alfred Abel Chair of Law and was appointed in 2015 to the rank of University Professor. Malcolm Thorburn is Associate Professor of Law at the University of Toronto. Until 2012, he held the Canada Research Chair in Crime, Security and Constitutionalism at Queen's University. He has been a visiting fellow at the Australian National University (2008); Ludwig Maximilians University, Munich (2011); the French National Centre for Criminology (CESDIP), Paris (2011); and Magdalen College, Oxford (2011-12). He is an associate editor of the New Criminal Law Review and a member of the editorial boards of Law and Philosophy and Criminal Law and Philosophy.