The accused were charged with unlawful act manslaughter following a workplace incident where a co-worker was fatally injured by a high-pressure air hose.
One of the accused brought a motion to admit expert evidence from an occupational health and safety expert regarding the hazards of compressed air and the need for workplace training.
The court applied the White Burgess framework and dismissed the motion, finding that the proposed evidence regarding domestic law was inadmissible, and the factual evidence lacked probative value and was unnecessary, as the objective standard for manslaughter does not require such specialized knowledge.