The appellant and a co-accused were jointly tried and convicted of second degree murder.
At trial, each blamed the other.
The appellant testified, but had not given a pre-trial statement to the police.
The co-accused did not testify but had given a pre-trial statement.
Counsel for the co-accused cross-examined the appellant on his pre-trial silence.
The trial judge instructed the jury that they could consider the appellant's silence in assessing his guilt.
The Supreme Court of Canada held that while a co-accused may cross-examine an accused on pre-trial silence to make full answer and defence and attack credibility, the jury must be strictly instructed that such silence cannot be used as positive evidence of guilt.
The trial judge's instructions were fatally flawed, and a new trial was ordered.