In 1956, Nourse was
called to the bar (
Lincoln's Inn), was made a bencher in 1978, and served as treasurer in 2001. He was a member of the General Council of the Bar from 1964 to 1968. Nourse served as a junior counsel to the
Board of Trade in chancery matters from 1967 until 1970, the same year he became a
Queen's Counsel. He was appointed
Attorney-General of the Duchy of Lancaster in 1976 and a judge of the Jersey and Guernsey Courts of Appeal in 1977. He served in both posts until he became a
High Court judge on 14 April 1980, receiving the customary
knighthood, and was assigned to the
Chancery Division. Nourse was made a
Lord Justice of Appeal on 3 June 1985. From 1992 to 1995, he served as President of the Council of the Inns of Court. When
Lord Phillips of Worth Matravers was appointed
Master of the Rolls in 2000, Nourse was appointed the first
Vice-President of the Civil Division to enable him to serve as Acting Master of the Rolls from June to October 2000 while Lord Phillips completed work on the
Bovine spongiform encephalopathy outbreak inquiry. He continued as Vice-President until he retired from the bench the following year. ==Arms==