The appellant, who suffered from schizophrenia and auditory hallucinations, was arrested on outstanding warrants and subsequently confessed to a murder and several robberies.
He waived his right to counsel multiple times, despite advice from a lawyer to remain silent, claiming voices in his head compelled him to confess.
The trial judge excluded the statements, finding the appellant lacked the capacity to appreciate the consequences of waiving his rights, leading to an acquittal.
The Court of Appeal ordered a new trial.
The Supreme Court of Canada dismissed the appeal, holding that the 'operating mind' test applies to the confession rule and the waiver of Charter rights, requiring only that the accused have sufficient cognitive capacity to understand what they are saying and that it can be used against them, which the appellant possessed.