 He was called to the bar at Inner Temple in 1975 and became a Bencher of his inn in 2001.In 1988, he was called to the bar of the Republic of Ireland and in 1992 was appointed a Queen's Counsel.He was appointed an Assistant Recorder in 1994 and a Recorder in 2000, being authorised as a deputy High Court judge and assigned to the Patents Court in 1998.