R v Piao

The appellant, Piao, was convicted of murder following a jury trial. He appealed this conviction to the Full Court of the Supreme Court of South Australia, raising several grounds of appeal. These included alleged errors by the trial judge in intervening during re-examination, raising a new theory regarding call charge records in the summing up, admitting WeChat messages as evidence, and the contention that the verdict was not supported by the evidence.

The central legal issues before the Full Court were whether the trial judge had erred in his conduct and rulings, and whether the evidence presented at trial was sufficient to sustain a conviction for murder beyond a reasonable doubt. Specifically, the court had to consider the admissibility of WeChat messages under section 34KA of the Evidence Act 1929 (SA), the propriety of the trial judge's intervention and summing up, and the overall strength of the circumstantial evidence presented by the prosecution.

The Full Court, comprising Kelly, Nicholson, and Hinton JJ, conducted an independent review of the evidence. The court found that the prosecution's case, which was largely circumstantial, was compelling. Evidence included CCTV footage showing the appellant entering and leaving the hotel where the deceased was found, the presence of the appellant's DNA on items in the room, a high-heeled shoe with the appellant's thumbprint and blood consistent with the deceased's injuries, and the discovery of a specific type of razor blade in the appellant's van matching one found at the scene with traces of the deceased's blood. The court was satisfied that it was open to the jury to find the appellant guilty beyond a reasonable doubt, describing the evidence pointing to guilt as "overwhelming."

Consequently, the Full Court dismissed the appeal, finding no misgivings about the jury's verdict. The court agreed that the appeal should be dismissed for the reasons articulated by Kelly J.