Professor; Innovation Chair

Jackman Law Building
78 Queen's Park
Room J326
Toronto, Ontario M5S 2C5

Tel.: 416-978-7546

He was named a fellow of the Trudeau Foundation in 2024 (2024-2027). In winter 2025, he will be the Nathaniel Fensterstock Visiting Professor of Law at Columbia Law School, New York, USA. In the 2011-2012 academic year, he was the Robert S. Campbell visiting fellow at Magdalen College, University of Oxford, UK. He has held visiting fellowships at the Max Planck Institute for the Study of Crime, Security and Law, Freiburg, Germany (2024), Sciences Po, Paris, France (2019), Ludwig Maximilians University in Munich, Germany (2011), the French National Centre for Criminology (CESDIP) in Paris, France (2011), and at the Australian National UniversityCanberra, Australia (2008).


His writing focuses on theoretical issues in criminal justice and public law including criminal law and procedure, sentencing, policing, and constitutional questions of rights and proportionality reasoning. He is the editor of two books: The Philosophical Foundations of Constitutional Law (with David Dyzenhaus) and The Dignity of Law (with Dwight Newman). His work has appeared in such publications as the Yale Law JournalRatio Juris, the Boston University Law Review, the University of Toronto Law JournalCriminal Law and Philosophy and many books. 

He is co-convenor of the Legal Theory Workshop, and a member of the editorial boards of Law and Philosophy and Criminal Law and Philosophy.

Awards and distinctions
Canada Research Chair (tier 2) in Crime, Security and Constitutionalism, 2010-2013
Selected publications

"Policing and Public Office" University of Toronto Law Journal 70: 248-266 (2020).

"Criminal Punishment and the Right to Rule" University of Toronto Law Journal 70:44-63 (2019)

"Soldiers as Public Officials: A Moral Justification for Combatant Immunity" 32 Ratio Juris 395 (2019).

"Human Trafficking: Supplying the Market for Human Exploitation," in Herlin-Karnell, E, Haverkamp, R, and Lernestedt, C, eds, What is Wrong with Human Trafficking? Critical Perspectives on the Law, (Bloomsbury 2018).

"Punishment and Public Authority" in Asp, P, Dubois-Pedain, A and Ulvang, M eds, Criminal Law and the Authority of the State (Bloomsbury, 2017).

"Proportionality" in Dyzenhaus, D and Thorburn, M eds, The Philosophical Foundations of Constitutional Law (Oxford University Press, 2016).

"Two Conceptions of Equality Before the (Criminal) Law" in Tanguay-Renaud, F. and Stribopoulos, J. eds., Rethinking Criminal Law Theory: New Canadian Perspectives in the Philosophy of Domestic, Transnational and International Criminal Law, (Hart Publishing 2011)

"Criminal Law as Public Law" in Duff, R.A. and Green, S. eds., Philosophical Foundations of Criminal Law (Oxford University Press 2011)

"Reinventing the Night-watchman State?" 60 University of Toronto Law Journal 425 (2010) .

"Justifications, Powers and Authority" 117 Yale Law Journal 1070 (2008)

Research areas
Canadian Constitutional Law
Charter of Rights
Comparative Law
Criminal Law 
Criminal Procedure and Evidence
Legal Theory

Law Courses