Brown v The Queen

In *Brown v The Queen*, the High Court of Australia considered an appeal from a conviction for murder. The appellant, Brown, had been found guilty of murder by a jury in the Supreme Court of Victoria and subsequently appealed to the Court of Appeal of Victoria, which dismissed his appeal. The central dispute concerned the admissibility of certain evidence and the directions given to the jury by the trial judge.

The High Court was required to determine whether the trial judge had erred in admitting evidence of the appellant's prior convictions and whether the judge's directions to the jury regarding the use of this evidence were adequate. Specifically, the court had to consider whether the prejudicial effect of the prior convictions evidence outweighed its probative value, and if the jury was properly instructed on how to consider such evidence, particularly in relation to the issue of propensity.

Gummow and Heydon JJ held that the admission of the prior convictions evidence was an error. Their Honours reasoned that the evidence was admitted for the purpose of establishing the appellant's propensity to commit the offence charged, rather than for a legitimate purpose such as demonstrating a common purpose or identity. The court emphasised that evidence of prior convictions should only be admitted if it has a sufficient probative value to outweigh its prejudicial effect, and that the jury must be clearly directed on the limited use to which such evidence may be put. The directions given in this case were found to be insufficient to mitigate the prejudice arising from the admission of the prior convictions.

The High Court allowed the appeal, quashed the conviction, and ordered a new trial.