Rolls v The Queen; Sleiman v The Queen

The High Court of Australia recently heard two appeals concerning the convictions and sentences of Rolls and Sleiman for conspiracy to murder. The dispute involved whether the trial judge correctly instructed the jury on the requirements for finding both co-accused guilty of the conspiracy. The court also had to consider whether the jury was adequately informed about the admissibility of evidence in relation to each accused. The High Court examined previous cases, including R v Moran and Mokbel, Nirta v The Queen, R v Anderson, and R v Siracusa & ors, to determine the correct legal principles applicable to conspiracy charges involving multiple conspirators.

The central legal issues were whether the trial judge's instructions to the jury were accurate and whether the jury was properly guided on the admissibility of evidence. The court had to clarify whether it is possible for a conspiracy to be established even if only one conspirator is actively involved. Additionally, the court examined whether the jury should be directed to find both co-accused guilty before finding either guilty. The High Court also scrutinised the sentencing process, considering whether the sentences imposed were manifestly excessive and whether the sentencing judge appropriately considered the mental health of one of the accused.

In delivering the judgment, the court determined that the trial judge correctly instructed the jury on the necessary elements of conspiracy, distinguishing between the cases cited. The court found that the jury was adequately informed about the admissibility and inadmissibility of evidence against each accused. Regarding sentencing, the court held that the sentences were not manifestly excessive, noting the absence of specific sentencing guidelines for conspiracy to murder. The court found no error in the sentencing judge's consideration of Sleiman's mental health and concluded that the disparity in sentences was appropriate.

The court dismissed the applications for leave to appeal both the convictions and the sentences. The findings affirmed the trial judge's approach to instructing the jury and the sentencing considerations, upholding the convictions and sentences of both Rolls and Sleiman.