BBH v The Queen

The High Court of Australia considered an appeal by BBH against a conviction for murder. The dispute concerned the admissibility of certain evidence during the trial, specifically evidence relating to the appellant's prior convictions and alleged bad character. The High Court was tasked with determining whether the admission of this evidence had resulted in a miscarriage of justice.

The central legal issue before the High Court was whether the trial judge had erred in admitting evidence of the appellant's prior convictions and other evidence of bad character, which was not directly relevant to the charge of murder. This raised questions about the proper application of the rules of evidence, particularly concerning the prohibition against admitting evidence that tends to prove a person's bad character or criminal propensity, unless it is otherwise relevant to a fact in issue. The Court also had to consider whether, even if the evidence was wrongly admitted, it had caused a substantial wrong or miscarriage of justice, thereby justifying the dismissal of the appeal.

The High Court reasoned that the evidence of prior convictions and bad character was improperly admitted as it did not fall within any of the exceptions to the general prohibition against such evidence. The Court found that the evidence was highly prejudicial and likely to have led the jury to infer guilt based on the appellant's past conduct rather than the evidence relating to the murder charge. Consequently, the High Court concluded that the admission of this evidence constituted a substantial wrong and a miscarriage of justice. The appeal was allowed, the conviction was quashed, and a new trial was ordered.