Mr. Justice MacCallum was called to the bar in Alberta in 1965 and appointed to the Court of Queen’s Bench in 1983. In addition to his trial court responsibilities in Alberta, Justice MacCallum is a deputy judge in Nunavut, the Yukon Territories and the Northwest Territories. He was chairman of the Alberta Federal Electoral Boundaries Commission and served four terms as a sessional lecturer at the Faculty of Law at the University of Alberta. He was the Chairman of the Fatality Review Board for the Province of Alberta for five years.