R.A. Duff is a Professor Emeritus in the Philosophy Department at the University of Stirling, and holds the Russell and Elizabeth Bennett Chair at the University of Minnesota Law School.Lindsay Farmer is Professor of Law at the University of Glasgow.S.E. Marshall is a Professor Emeritus in the Department of Philosophy at the University of Stirling, and a Visiting Research Scholar at the University of Minnesota Law School.Massimo Renzo is an Associate Professor in the Department of Philosophy at the University of Warwick.Victor Tadros is Professor of Criminal Law and Legal Theory at the University of Warwick.