Mark Hill, QC is Associate or Visiting Professor at the Centre for Law and Religion, Cardiff University; the University of Pretoria; King's College London; and Notre Dame University, Sydney. His most recent book is The Confluence of Law and Religion (Cambridge, 2016). He is Consultant Editor of the Ecclesiastical Law Journal, a Recorder of the Crown Court, Deputy Judge of the Upper Tribunal and Chancellor of the Dioceses of Chichester, Leeds and Europe. R. H. Helmholz is Ruth Wyatt Rosenson Distinguished Service Professor of Law at the University of Chicago. His most recent book is Natural Law in Court (2015), in which he traces the role played by the law of nature in legal practice of the courts of Europe, England and the United States from 1500 to the mid-nineteenth century.