Ryan v The Queen

This matter concerned an appeal by the applicant, Ryan, against his conviction for murder in the Supreme Court of Queensland. The dispute centred on the admissibility of certain evidence during the trial.

The primary legal issue before the High Court of Australia was whether the trial judge had erred in admitting evidence of the applicant's prior convictions and prior bad character. This evidence was admitted on the basis that it was relevant to the applicant's propensity to commit the offence charged.

The High Court, comprising McHugh and Callinan JJ, considered the principles governing the admissibility of evidence of prior convictions and bad character. Their Honours held that such evidence is generally inadmissible unless it has a specific relevance to an issue in the case, beyond merely demonstrating a propensity to commit the crime. The court found that the evidence admitted in this trial did not meet that threshold and was therefore improperly admitted.

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