He was appointed to the Constitutional Court by Royal Order on 28 January 1997. From 9 October 2007 until his retirement Bossuyt was the President of the Dutch linguistic group of the Constitutional Court of Belgium.
He was appointed to the Constitutional Court by a royal decree on January 28, 1997. From October 9, 2007 until his retirement, Bossuyt served as the president of the Dutch-speaking branch of the Belgian Constitutional Court.