Armin von Bogdandy is Director of the Max Planck Institute for Comparative Public Law and International Law and Professor for Public Law at the University in Frankfurt/Main. He has been President of the OECD Nuclear Energy Tribunal as well as a member of the German Science Council (Wissenschaftsrat) and the Scientific Committee of the European Union Agency for Fundamental Rights; he has held visiting positions at the NYU School of Law, the European University Institute, the Xiamen Academy of International Law, and the Universidad Nacional Autonóma de México, among others. Von Bogdandy is the recipient of the Leibniz Prize, the prize for outstanding scientific achievements in the field of legal and economic foundations by the Berlin-Brandenburg Academy of Sciences, the Premio Internacional 'Hector Fix Zamudio', and the 'Mazo' (gavel) of the Interamerican Court of Human Rights. His research centres on the structural changes affecting public law. Peter M Huber is a Justice of the Federal Constitutional Court of Germany, and holds the Chair of Public Law and Constitutional Philosophy at the Ludwig-Maximilian University of Munich. He was a member of the Commission on Media Concentration Control (2002-09), head of the German Law Faculties Association from 1999-2009, and has been a member of various parliamentary commissions, in addition to a role as Minister of the Interior of Thuringia (2009-10). He is the co-editor of Current Problems in the Protection of Human Rights: Perspectives from Germany and the UK (with K Ziegler, 2013) and of Legal Challenges in the Global Financial Crisis: Bail-outs, the Euro and Regulation (with W-G Ringe, 2014). Christoph Grabenwarter is Vice President of the Constitutional Court of Austria. Since 2006, he has been a professor for Public Law at the University of Economics and Business Administration, Vienna.