De Simone v The Queen

In *De Simone v The Queen*, the High Court of Australia considered an appeal by the applicant, De Simone, against his conviction for murder. The dispute centred on the admissibility of certain evidence during his trial.

The primary legal issue before the High Court was whether the trial judge had erred in admitting evidence of the applicant's prior convictions and prior bad character. This evidence had been admitted under s 97 of the *Uniform Evidence Law* (NSW), which deals with the admission of evidence of a person's character or reputation. The applicant argued that this evidence was unfairly prejudicial and should have been excluded under s 137 of the *Uniform Evidence Law* (NSW), which mandates the exclusion of evidence if its probative value is outweighed by the danger of unfair prejudice to the accused.

Crennan J, delivering the judgment of the High Court, analysed the application of ss 97 and 137. His Honour found that the evidence of prior convictions and bad character was relevant to establishing the applicant's propensity to commit the offence charged. However, the critical question was whether the probative value of this evidence was outweighed by the risk of unfair prejudice. The Court held that the trial judge had failed to adequately consider the potential for unfair prejudice when admitting the evidence. The admission of this evidence, therefore, constituted a miscarriage of justice.

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