RP v The Queen

The case of RP v The Queen concerned an appeal to the High Court of Australia by the applicant, RP, against a decision of the Court of Criminal Appeal of New South Wales. The dispute arose from RP's conviction for a serious criminal offence.

The High Court was required to determine whether the trial judge had erred in admitting certain evidence, specifically evidence of prior sexual misconduct by the applicant, and whether the admission of this evidence had occasioned a miscarriage of justice. A further issue was whether the Court of Criminal Appeal had correctly applied the principles governing the admission of such evidence under the relevant Evidence Act.

In their joint judgment, Gageler and Gordon JJ analysed the admissibility of the prior sexual misconduct evidence, focusing on whether its probative value outweighed its prejudicial effect. They affirmed that evidence of prior misconduct is generally inadmissible unless it has a specific relevance beyond merely suggesting a propensity to commit the offence charged. The Court reiterated the importance of a careful balancing exercise by the trial judge, considering the potential for the jury to misuse the evidence. They found that the trial judge had failed to adequately conduct this balancing exercise, and that the admission of the evidence was an error.

The High Court concluded that the error in admitting the evidence had occasioned a miscarriage of justice, and accordingly, allowed the appeal. The conviction was quashed, and the matter was remitted to the Court of Criminal Appeal for re-sentencing.