Full Professor of International Law at the University of the Bundeswehr/Munich (since 2006); Associate Professor at the Bavarian School of Public Policy. Visiting Professor at Université Laval/Québec (2016) and University St. Gallen/Switzerland (since 2015). Law Studies and professional training as a lawyer and judge in Marburg, Geneva, Munich and New Delhi. Specialized Courses in International Law (The Hague Academy of International Law; London School of Economics; Strasbourg/Coimbra Faculté de Droit Comparé; Florence European University Institute). Doctor of Law (2006); Habilitation (“venia legendi”, 2003). Extensive publication in both, International and European Law. Professional Affiliations: German Society of International Law; Société européenne de droit international; Société québécoise de droit international.

Counsel before the ICJ: "Case concerning the Land and Maritime Boundary between Cameroon and Nigeria" (1994-2002 - Cameroon Order of Merit (2003) and "LaGrand Case" (1999-2001), advisor in the "Certain Property Case" (2001-2005). Numerous legal opinions, in particular on various boundary issues. Advisory projects to the Mongolian Government regarding the transformation of the country’s legal and administrative structures.

Since 2016 research project (together with Kristin Bartenstein/Université Laval) “Gouvernance de l'Arctique: Regards croisés québéco-bavarois sur le couple Canada-Allemagne” (co-financed by the Bavarian Research Alliance and the Ministère des Relations internationales et de la Francophonie/Québec).