Member: Berne State Bar Association; Swiss Bar Association; American Bar Association, Section of Family Law; International Bar Association, General Practice Section, Family Law Committee, Chair (1987-89); Board of Governors, International Academy of Matrimonial Lawyers (1993-94), Vice-President (1994-96); President, European Chapter (1996-98); Swiss Association of Police Officers, Bern City, President (since 1994); Swiss Insurance Medicine SIM.