Lord Colbeck was appointed as a judge in the Supreme Courts in May 2023.
Lord Colbeck was appointed Sheriff Principal of Glasgow and Strathkelvin in September, 2016. He was appointed as a part-time sheriff in 2011 and became a sheriff in 2014. Lord Colbeck graduated from the University of Strathclyde and was admitted as a solicitor in 1988, working for A.C.White in Ayr and Levy & McRae in Glasgow before joining MacRoberts in 1993. He became a partner there in 1997, specialising in commercial and construction disputes and health & safety and environmental prosecutions, and served as the managing partner from 2011 to 2014.
Lord Colbeck has been a member of the Scottish Sentencing Council since 2020.