PhD, Oxford University, 1965. Australian legal scholar and philosopher specialising in the philosophy of law. Professor of Law and Legal Philosophy Emeritus, University of Oxford, where he was a Tutorial Fellow of University College and a teaching member of the Faculty of Law, 1966-2010. Biolchini Family Professor of Law and adjunct Professor of Philosophy, University of Notre Dame in Indiana, 1995-. Professor of Law and Head of Department of Law, University of Malawi, 1976-1978