R.A. Duff was educated at the University of Oxford and has taught philosophy at the University of Sterling since 1970. He is the author of Trials and Punishments (1986), Intention, Agency, and Criminal Liability (1990), and Criminal Attempts (OUP 1996), contributing editor of Philosophy and the Criminal Law: Principle and Critique (1998), and co-editor, with David Garland, of A Reader on Punishment.