Osborne v The State of Western Australia

The appeal in Osborne v The State of Western Australia involved the appellant, who was convicted following a trial on multiple counts of sexually penetrating and indecently dealing with children under the age of 13 years. The appellant contested the conviction, arguing that the trial judge's Longman direction was inadequate. The appeal was heard in the Supreme Court of Western Australia, Court of Appeal.

The central legal issue before the court was whether the trial judge's Longman direction was adequate and whether the judge was required to provide specific examples of forensic disadvantage when giving such a direction. The appellant argued that the direction provided by the trial judge did not sufficiently inform the jury about the forensic disadvantages faced by child complainants in sexual assault cases, thus impacting the jury's assessment of the evidence. The respondent, the State of Western Australia, maintained that the trial judge's Longman direction was adequate and that there was no requirement for the judge to provide specific examples of forensic disadvantage.

The court found that while the trial judge's Longman direction was generally adequate in informing the jury about the vulnerabilities of child complainants, it could have been enhanced by providing more specific examples of forensic disadvantage. The court emphasised that while there is no strict requirement for a trial judge to provide specific examples, doing so can assist the jury in understanding the unique challenges faced by child complainants. The court concluded that the trial judge's Longman direction, while generally adequate, could have been improved with additional detail. Consequently, the appeal was allowed, and the conviction was quashed. The matter was remitted to the District Court for a retrial.