Helen Keller



Born in Zurich (Switzerland) in 1964. Obtained her Doctorate in Environmental Law from the University of Zurich in 1993. She  earned a Master of European Law from the College of Europe in Bruges (Belgium) in 1994. She was a Research Fellow at the Harvard University Law School (USA) in 1995, and in 1996 at the European University Institute of Florence, Italy. A Member of the American Society of International Law since 1996. Worked as a Legal Counsel in a law firm in Switzerland, from 1996 to 2011. She was a Visiting Researcher at the Max-Planck Institute for International Law of Heidelberg (Germany) in 2000. Worked as a Professor of International Law, Constitutional Law and European Law at the University of Lucerne, from 2001 to 2004, and from 2004 to 2011 at the University of Zurich. She was a Board Member of the International Law Commission, Swiss Section, from 2008 to 2011, and a Member of the United Nations Human Rights Committee, in the same period. She was a Visiting Scholar at the Centre for Advanced Studies in Oslo (Norway), in 2010. She served as Judge of the European Court of Human Rights from 2011 to 2020.

Ms. Keller took the office of international Judge of the Constitutional Court of Bosnia and Herzegovina in December 2020. She served as Vice-President  of the Constitutional Court from March 2022 until June 2024.

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