Background
Keller, Helen was born in 1964.
Keller, Helen was born in 1964.
University of Zurich (licentiate.iur., 1989. Doctor of law, 1993). College of Europe, Bruges, Belgium (Master of Laws, 1994).
Worked at Umbricht Rechtsanwalte. Assistant, Administrative, Constitutional and Environmental Law, University of Zürich, 1989-1993.