The Crown applied to admit expert opinion evidence from a dog track handler (Sgt. deRuiter) and a forensic toxicologist (Dr. Langille) in a criminal trial for impaired driving causing bodily harm and fail to remain.
The respondent objected to the scope and admissibility of the expert evidence.
The court applied the two-step inquiry for expert evidence admissibility, considering the Mohan criteria and the cost-benefit analysis from R. v. Abbey.
The court found both expert opinions relevant, necessary, and not subject to exclusionary rules, with qualified experts.
The probative value of the evidence, particularly given the lack of eyewitnesses and the injured party's memory loss, was deemed to outweigh any prejudicial effect.
The Crown's application was granted for both experts.