The appellant was convicted of dangerous driving causing death and failing to remain at the scene of an accident.
At trial, the defence called a psychiatrist who testified that the appellant's schizophrenia may have affected his appreciation of the risk of his driving.
On cross-examination, the Crown elicited hearsay evidence from the appellant's medical records regarding prior violent incidents to suggest the appellant had anger management issues.
The trial judge failed to instruct the jury on the limited permissible use of this bad character evidence and its hearsay nature.
The Crown also invited the jury to engage in prohibited propensity reasoning during closing submissions.
The Court of Appeal found these non-directions fatal to the verdicts, allowed the appeal, and ordered a new trial.