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Dr. Peter Karlen

Dr. Peter Karlen

Attorney at Law, Counsel

+41 (0)44 213 63 63


As a former Judge at the Swiss Federal Supreme Court, a judge at the Zurich Public Law Court and attorney at law, Dr. Peter Karlen has a profound knowledge and many years of experience in the fields of Public Law and Criminal Procedural Law. He is the author of numerous publications and acts as an expert adviser for public authorities and private clients.


  • Since 2020: Counsel with Umbricht Attorneys
  • 2001 - 2019: Judge at the Swiss Federal Supreme Court, most recently member of the First Public Law Division, before that member of the Second Public Law Division und the Criminal Law Division
  • 2011 - 2019: Member of the Editorial Board of
    Schweizerisches Zentralblatt für Staats- und Verwaltungsrecht
  • 2001: Attorney at law in Zurich
  • 2000 - 2001: Member of the Constitutional Council of the Canton of Zurich
  • 1998 - 2001: Substitute Judge of the Administrative Court of the Canton of Zurich
  • 1992- 2000: Clerk at the Federal Supreme Court
  • 1990: Admission to the Bar, Canton Zurich
  • 1987: Dr. iur. (University of Zurich)
  • 1983: lic. iur. (University of Zurich)

Preferred Areas of Work

Constitutional and Administrative Law, especially political rights, fundamental rights; Public Procedural Law; Public Construction, Planning and Environmental Law, Infrastructure and Expropriation Law, Contribution Law, Law of Religions


  • Member of the Swiss and Zurich Bar Associations (SAV, ZAV)
  • Member of the Zurich Jurists’ Association
  • Member of the Swiss Association for Evangelical Ecclesiastical Law (Member of the Board 1992-1997)
  • Member of the Zurich Homeowners’ Association HEV Zurich (Member of the Board 2020-)


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German, French