MacLean was appointed a Senator of the College of Justice in 1990, serving until 2005.
On 15 February 2013, Armstrong was appointed a Senator of the College of Justice.
As a lawyer he was a Senator of the College of Justice.
He became a Senator of the College of Justice in Scotland in 1979.
From 1811 to 1842, he was a Senator of the College of Justice.
He was elected a Senator of the College of Justice on 5 July 1955.
He was made an Extraordinary Senator of the College of Justice on 27 June 1532.
They are also called Senators of the College of Justice.
On leaving office, he was appointed a Senator of the College of Justice in 1964, holding office until 1984.
He was a Senator of the College of Justice.