After twelve years of practicing both civil and criminal trial law, Colin was appointed a Judge of the Maricopa County Superior Court in 1990. During his seventeen years as a Judge, he sat on every assignment (civil, criminal, juvenile and family), and was Presiding Judge from 2000 to 2005.
Sources praise him for having "extensive trial experience from the other side of the bench." - Chambers USA 2017
On returning to Osborn Maledon in 2007 after his retirement from the Bench, Colin has had an active commercial and public law trial practice.