Lawyer at Law firm Fehlhaber, Schauenburg & Rackow, Oldenburg (1994-1995)
Postgraduate scholarship of the Landesgraduiertenförderung Mecklenburg-West Pomerania (Mecklenburg-Vorpommern), Subject: Marine Protected Areas, Doctorate (PhD) at the University of Rostock (1995-1997)
Visiting Scholar at Universities of Lund, Linköping and Uppsala /Sweden (1996-1997)
Research Assistant at Baltic Sea Institute of the Law of the Sea and Environmental Law (OSU) at University of Rostock
Research associate at the IOER (since 1998)
Honorary Professor for Environmental Law and Planning Law at Faculty of Law at Technische Universität Dresden (since 2010)
Study of Law at the Georg-August-University Göttingen (1st State Examination in Law 1991)
Trainee Lawyer at the District Court of Oldenburg (2nd State Examination in Law 1994)
Study of Administration Law at the Deutsche Hochschule für Verwaltungswissenschaften Speyer (1993-1994)
Corresponding Member of the Academy for Spatial Research and Planning (ARL)
Member of Länder-Working Group "Sachsen/Sachsen-Anhalt/Thüringen" (ARL) – Member of the steering committee since 2015
Member of Verein für Umweltrecht e. V. (VUR), Bremen
Founding Member and Vice Chairman (2002-2006) of EUCC - Die Küsten Union Deutschland
Vice Chairman of the German Institute of Direct Democracy at Technische Universität Dresden e.V.
Member of the EGTC Expert Group of the European Union Committee of the Regions
Member of International Academic Association on Planning, Law, and Property Rights (PLPR)
The Leibniz Institute of Ecological Urban and Regional Development is jointly funded by the federal government and the federal states.
This institute is co-financed by tax funds on the basis of the budget approved by the Saxon State Parliament.