The appellant, Carl Quinton, appealed his conviction for second-degree murder, which was largely based on a confession obtained through a "Mr. Big" undercover operation.
The trial judge failed to hold a voir dire to determine the confession's admissibility under R. v. Hart, accepting defence counsel's mistaken concession that Hart did not apply.
The Court of Appeal found that the operation clearly fell under Hart, and the purported waiver of the voir dire was invalid because counsel was not fully informed and the agreement offered no benefit to the defence.
The Court highlighted significant abuse of process concerns, given the police exploitation of the appellant's vulnerabilities (alcoholism, mental health issues, physical stroke, social isolation, and financial destitution).
The appeal was allowed, and a new trial was ordered, with the Court emphasizing the need for rigorous judicial scrutiny of police conduct in Mr. Big operations.