2021-2023

Member of the Board of the Stem Cell Network.NRW (Stammzellnetzwerk.NRW)

2018

Award of the 1st AeV Prize "Medicine and Ethics („Medizin und Ethik“)

2018

Admission to the Leopoldina - National Academy of Sciences and Humanities (Leopoldina – Nationale Akademie der Wissenschaften)

2017-2019

Dean of the Faculty of Law

2015

in summer semester 15 Fellow of the Alfried Krupp Wissenschaftskolleg in Greifswald

2014

Award of the "Law and Society" Prize of the Christa Hoffmann Riem Foundation

2014

In summer semester 14 Fellow of the DFG Research Group "Justification of Norms in Medical Ethics and Biopolitics" („Normenbegründung in Medizinethik und Biopolitik“)  at the WWU Münster

2013/14

Head of the research group "Normative Aspects of Public Health" („Normative Aspekte von Public Health“) at the Centre for Interdisciplinary Research at Bielefeld University in winter semester 2013/14

2012/13

dividual funding of the Mercator Research Center Ruhr in winter semester 2012/13

2011

Call to the University of Augsburg for a W3 professorship in public law (rejected)

2010/11

Appointment as Fellow at the Wissenschaftskolleg zu Berlin

2008

Managing Director of the Centre for Medical Ethics e.V.

2007

January to March Research Fellow at the Kennedy Institute of Ethics at Georgetown University (Washington, DC)

2005

as of January 31st Executive Director of the Institute for Social and Health Law at the
Ruhr University Bochum

2004

from November 24th University professor (C 4) at the Ruhr University Bochum
(Chair of Public Law II: Constitutional and Administrative Law with Special Reference to Social Law) (Lehrstuhl Öffentliches Recht II: Staats- und Verwaltungsrecht mit besonderer Berücksichtigung des Sozialrechts)

2003

from April 1st university professor (C 4) at the FernUniversität in Hagen (teaching German and European constitutional and administrative law)

In June 2003, award of the Research Promotion Prize of the FernUniversität in Hagen on the subject of "Aspects of EU Enlargement" for the project "Systematic Commentary on the Treaty on the Accession of
of the Central and Eastern European States, Cyprus and Malta to the European Union".im Juni 2003 Verleihung des Forschungsförderungspreises der FernUniversität in Hagen zum Thema "Aspekte der EU-Erweiterung" für das Projekt "Systematischer Kommentar zum Vertrag über den Beitritt
der Mittel- und Osteuropäischen Staaten, Zyperns und Maltas zur Europäischen Union"

Member of the Board of the Institute for European Constitutional Studies (Institut für Europäische Verfassungswissenschaften, IEV) at the FernUniversität in Hagen 

2002

May 1st senior assistant at the Faculty of Law of the Ruprecht-Karls-University Heidelberg

from October 1st Representation of the Department of German and European Constitutional and Administrative Law at the FernUniversität in Hagen

2001

Habilitation and award of the venia legendi for the subjects constitutional and administrative law, social law, European law and philosophy of law

1996

April 1st Research assistant at the Faculty of Law of the Ruprecht Karls University Heidelberg

1995

Second state examination in law
from November 1st Research assistant at the Faculty of Law of the Ruprecht Karls University Heidelberg

1993

From 1.10. Legal clerkship at Heidelberg Regional Court

on 8.12. doctorate (s.c.l.) with the thesis  "Rechte und Ziele. Zur Dogmatik des allgemeinen Gleichheitssatzes" ("Rights and Goals. On the Dogmatics of the General Principle of Equality") (awarded the Fritz Grunebaum Prize of the University of Heidelberg). 

1990

from November 1st  Research assistant at the Faculty of Law of the Ruprecht-Karls-University Heidelberg

1987

from winter semester 1987/88 Continuation of the double degree programme at the J. W. Goethe University Frankfurt/M.

1985

From the winter semester 1985/86, double degree in law and philosophy at the University of Bielefeld
Scholarship holder of the German National Academic Foundation

1984

After obtaining the general university entrance qualification, studied philosophy at the University of Bielefeld from the winter semester 1984/85.

1964

born in Gütersloh / Westf.

Vereinigung der Deutschen Staatsrechtslehrer (Association of German Constitutional Law Teachers)

Deutscher Sozialrechtsverband (German Social Law Association)

Internationale Vereinigung für Rechtsphilosophie (International Association for Philosophy of Law)

Vereinigung für Rechtssoziologie (Association for the Sociology of Law)

Verein zur Förderung der Rechtswissenschaft e.V. (Association for the Promotion of Legal Studies e.V.)

Polarkreis e.V. 

Deutsche Gesellschaft für Medizinrecht e.V. (DGMR) (German Society for Medical Law)

Verein der Mitglieder und Freunde des Wissenschaftskollegs e.V.

Gesellschaft für Recht und Politik im Gesundheitswesen e.V. (GRPG) (Society for Law and Policy in Health Care)