From 12 to 14 September 2016, the Faculty of Law at the University of Cambridge held the second in a biennial series conferences on Public Law.The theme for the second Public Law Conference was "The Unity of Public Law?". The conference brought together academics, judges and practitioners from a range of Public Law fields and a variety of common law jurisdictions. The intention was that the Public Law series should become a pre-eminent forum for the discussion of Public Law matters in the common law world. For more information about the Public Law Conference, please refer to http://www.publiclawconference.law.cam.ac.uk/