is a professor of public law, public international law and European Union law at the Law Faculty of the University of Kiel, Germany, and Director of the Walther Schuecking Institute for International Law (since 2006). He held his first chair in public law, EU law and public international law at the University of Bremen, Germany (2002 - 2006). Formerly, he was a senior research fellow at the Max Planck Institute for Comparative Public Law and International Law, Heidelberg (1990 - 91, 1993 - 2002), and a law clerk at the German Federal Constitutional Court, Karlsruhe (1991 - 1993). His doctoral thesis deals with the state action doctrine of the US Supreme Court ("Privatwirkung der Grundrechte in den USA", 1992) and his second doctoral thesis (Habilitationsschrift) with the relationship between the European constitution and the German constitution in the process of transnational constitutionalization ("Europäische Verfassung und deutsche Verfassung im transnationalen Konstitutionalisierungsprozeß", 2003). His other publications include numerous articles on various topics of European Union law, public international law and comparative constitutional law.

Thomas Giegerich is teaching at the School of Law of the University of Edinburgh as a Visiting Professor (September 2011 - March 2012).