Kissner v The Queen

In *Kissner v The Queen*, the High Court of Australia considered an appeal against a conviction for armed robbery. The appellant, Kissner, had been found guilty by a jury and sentenced to a term of imprisonment. The central dispute revolved around the admissibility of certain evidence and the fairness of the trial process.

The High Court was required to determine whether the trial judge had erred in admitting evidence that the appellant had previously been involved in a similar offence. This raised questions concerning the relevance of such evidence and whether its prejudicial effect outweighed its probative value. Furthermore, the Court had to consider whether the directions given by the trial judge to the jury regarding the use of this evidence were adequate to ensure a fair trial.

The Court held that the admission of evidence of prior similar offences, without a clear and compelling reason for its admission, was an error. Brennan, Dawson and McHugh JJ reasoned that such evidence, while potentially relevant to identity or system, carried a significant risk of the jury convicting the appellant based on his past conduct rather than the evidence relating to the present charge. They emphasised the importance of ensuring that the prejudicial impact of such evidence does not overshadow its probative value, and that clear directions are given to the jury to mitigate this risk. The Court found that the directions provided in this instance were insufficient.

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