The State of Western Australia v Silich

The appeal against conviction and sentence by Silich was heard by the Court of Appeal of Western Australia. The appellant was convicted of murdering his elderly parents. The appeal concerns the admissibility of a video record of an interview with the appellant, the admissibility of expert evidence regarding sleepwalking, and the appropriateness of the sentence imposed. The central issues before the court were whether the appellant had a reasonable opportunity to present his case on appeal, the admissibility of the video evidence, the admissibility of expert evidence on sleepwalking, and the appropriateness of the sentence for the double murder.

The court first considered whether the appellant had a reasonable opportunity to present his case on appeal. It concluded that the appellant had sufficient opportunity to do so, despite some procedural irregularities. Regarding the video evidence, the court held that the trial judge was correct to admit the video, as there was no evidence of unreliability or unfairness. The court also ruled that the expert evidence on sleepwalking was admissible, as it fell within the practice of psychiatry and the expert was adequately qualified. In assessing the sentence, the court noted that the trial judge had considered the double murder as an aggravating factor and had imposed a sentence within the middle range for murders. The court held that the minimum non-parole period of 15 years was not manifestly inadequate and that the trial judge had appropriately applied the legislative scheme under the Criminal Law Amendment (Homicide) Act 2008 (WA).

The appeal against conviction was dismissed, and the appeal against sentence was also dismissed. The court upheld the conviction and the sentence imposed by the trial judge, finding no error in the trial process or in the sentence.