Nono Ngaa v The Queen (No 2)

In the case of Nono Ngaa v The Queen (No 2), the appellant, Nono Ngaa, appealed against his conviction and sentence for conspiracy to commit armed robbery. The matter was heard in the High Court of Australia. Ngaa was found guilty of conspiring with others to commit armed robbery, a serious criminal offence under Australian law. The appellant's challenge to his conviction and sentence centred on the principle of parity, which asserts that co-conspirators should receive comparable sentences.

The central legal issue before the court was whether the appellant's sentence was unjustifiably disparate to that of his co-conspirators, particularly when one of them had his sentence reduced by another court. The appellant argued that the principle of parity required his sentence to be reviewed in light of the reduced sentence of his co-conspirator, as it created an unjustifiable disparity. The Crown, on the other hand, contended that the original sentence was appropriate and that the principle of parity did not mandate a reduction in the appellant's sentence.

The High Court held that the appellant's sentence was indeed unjustifiably disparate given the reduction in his co-conspirator's sentence. The court found that the principle of parity, while not absolute, does require that sentences of co-conspirators be considered in relation to each other to ensure fairness. The court found that the disparity in sentences created an unacceptable injustice, warranting a reduction in the appellant's sentence. Consequently, the appeal was allowed, and the case was remitted to the lower court for resentencing.

The final orders of the court were that the appellant's conviction for conspiracy to commit armed robbery was upheld, but his sentence was quashed and the matter was remitted to the lower court for resentencing in light of the principle of parity. The court did not alter the conviction but addressed the disparity in sentencing among the co-conspirators.