He primarily focuses on Liechtenstein in the 1930s and World War II.

[1] In 1970 he received a doctorate in Zurich and from the same year worked as a teacher at the St. Gallen Cantonal School until 1987.

[2][3] From 1987 to 2010 he was the research officer at the Liechtenstein Institute for the contemporary history of the country, he particularly focused on Liechtenstein in the 1930s and World War II.

[2][5] In 2017, along with Rupert Quaderer, he was honoured with a commemorative publication published jointly by the Liechtenstein Institute and the Historical Association of the Principality of Liechtenstein.

He married Ursula Eberle (born 2 November 1947) on 13 April 1971 and they have two children.