Armitage v The Queen

This matter came before the High Court of Australia on an application for special leave to appeal. The applicant, Mr Armitage, sought to challenge a decision of the Queensland Court of Appeal. The core of the dispute concerned the sentencing of Mr Armitage for manslaughter, specifically whether the sentencing judge and the Court of Appeal had impermissibly taken into account allegations of torture that had been withdrawn by the Crown and were not part of the manslaughter conviction.

The legal issues before the High Court were whether the sentencing of Mr Armitage for manslaughter had been vitiated by the application of the *De Simoni* principle, which prohibits punishing an individual for an offence of which they have not been convicted. The applicant argued that the Court of Appeal, in resentencing him, had effectively punished him for acts of torture by treating those allegations as aggravating factors for the manslaughter conviction, despite the Crown having withdrawn the torture charge and not proceeded to a retrial. The applicant contended that the particulars of the alleged torture constituted irrelevant circumstances for the manslaughter offence, and their consideration breached the *De Simoni* principle.

The applicant's primary submission was that the Court of Appeal erred by allowing the particulars of the withdrawn torture charge to inform and aggravate the sentence for manslaughter. This was said to be contrary to the *De Simoni* principle, as it amounted to punishment for an offence for which Mr Armitage had not been convicted. The applicant argued that the Crown's election not to proceed with the torture charge meant that Mr Armitage should only be sentenced on the basis of the proven offence of manslaughter, and that the alleged acts of torture, which were not proven to have caused the death and were not part of the common purpose to assault, should not have been relied upon to increase his sentence. The applicant conceded that acts causing or contributing to death could be relied upon, even if described as torture, but maintained that in this case, the causative link was unknown and the torture allegations were distinct from the manslaughter charge.