The appellant, a commercial truck driver, was convicted of importing cocaine after 53 kilograms of cocaine were found hidden in his trailer.
At trial, the Crown introduced an expert police report on the use of commercial vehicles for transporting contraband.
The report contained both general opinions and case-specific opinions regarding the appellant's credibility and knowledge of the drugs.
The Court of Appeal held that the case-specific opinions were inadmissible as they usurped the role of the trier of fact.
Finding that the trial judge improperly relied on this inadmissible evidence to conclude the appellant knew about the cocaine, the majority allowed the appeal and ordered a new trial.
