Mark Elliott is Professor of Public Law and Chair of the Faculty of Law at the University of Cambridge. From 2015 to 2019, he served as Legal Adviser to the House of Lords Select Committee on the Constitution, providing advice to the Committee on a range of legislative and other matters. Mark co-founded the international biennial Public Law Conference series and co-convened the first two conferences. His research interests lie in UK constitutional law and English administrative law; a good deal of his recent work has concerned the constitutional implications of Brexit. Mark is the recipient of a University of Cambridge Pilkington Prize for excellence in teaching and is the author of a widely read blog, Public Law for Everyone (www.publiclawforeveryone.com), that is aimed at public law scholars, current and prospective law students, policy-makers, and others who are interested in the subject. Robert Thomas is Professor of Public Law at the University of Manchester. His research focuses on administrative law. His book Administrative Justice and Asylum Appeals (2011) was awarded first prize by the Society of Legal Scholars Peter Birks Prize for Outstanding Legal Scholarship in 2011. Robert has acted as a specialist adviser to the House of Commons Constitutional Affairs Select Committee (2003-04). He is a member of the Administrative Justice Council and co-chairs its Academic Panel. Robert has been awarded research funding by the Nuffield Foundation and the Economic and Social Research Council to fund empirical legal research into aspects of administrative law including immigration judicial reviews and administrative review processes. He has also undertaken consultancy work in China, Japan and Serbia on the development and design of administrative law in those countries. Robert is a visiting fellow at the Université catholique de Louvain, Belgium.