Colin served in Vietnam as a National conscript during 1968-69. On his discharge from the Army, he resumed working for the Victoria Police Department as an unsworn member. In 1974, Colin was appointed Head of School Security for the Victorian Education Department in the prevention and detection of school crime.He then entered the legal profession, being admitted to practice in 1996 as a Barrister and Solicitor mainly practicing in the areas of crime, family violence and industrial relations. He retired in 2022 and lives on the Mornington Peninsula in Victoria with his wife, Michelle.