Trimboli v The Queen

The applicant, Trimboli, appealed to the court against jury verdicts of guilty on drug offences. The prosecution case was that Trimboli was in possession of, and knowingly involved in the manufacture of, a controlled substance, 4-Hydroxybutanoic acid (GHB). Trimboli contended that the evidence was insufficient to exclude the reasonable hypothesis that she was unaware of the contents of her car or their nature.

The central legal issue before the court was whether the jury's guilty verdicts were unreasonable or unsupported by the evidence, pursuant to s 158(1)(a) of the Criminal Procedure Act 1921 (SA). This required the court to determine if it was open to the jury to be satisfied of guilt beyond reasonable doubt, or if the jury must have entertained a doubt about the applicant's guilt. The court was not to retry the case but to identify any error and determine if a miscarriage of justice had occurred, respecting the jury's role as the constitutional tribunal for factual issues.

The court reasoned that a reasonable inference of innocence must be based on more than mere conjecture or the bare possibility of innocence. While circumstantial evidence must be considered in its combined effect, the appeal court's role is confined to reviewing whether the jury's conclusion was rationally open to them. The court found that the jury's verdicts indicated they were satisfied beyond reasonable doubt regarding Trimboli's possession and knowledge or recklessness, despite her denials.

Consequently, the court held that the application raised no issue of principle or reasonably arguable basis to impugn the jury's verdicts. Upon an independent review of the evidence, the court did not doubt the applicant's guilt. Accordingly, permission to appeal was refused and the appeal was dismissed.