He served as a member of the Federal Council (Switzerland) from 1987 to 1999 for the Christian Democratic People's Party (CVP).

[3][4][5] He is primarily known for Lex Koller, a Swiss Federal Act on Acquisitions of Real Estate by Persons Abroad, which he initiated.

He initially worked as a counsel in the legal department of PTT and from 1964 to 1966 in the Secretary of the Swiss Cartel Commission.

The conference was organised based on the Governmental Learning Spiral, a method to design problem-solving events in politics.

The conference background papers, proceedings and plenary speeches as well as the method are described in the book "Federalism in a Changing World – Learning from Each Other", which he edited together with Raoul Blindenbacher.

This is an international organisation designed to help develop best practices in countries around the world with federal and devolved systems of government.