Ng v The State of Western Australia

The appellant was convicted of drug-related offences, including possession and trafficking of various substances, and was sentenced to seven years' imprisonment. The court of appeal was tasked with determining whether the sentence for dexamphetamine failed to account for the low-level purity of the drug, and whether the total effective sentence of seven years breached the first limb of the totality principle. The appeal was heard by the Court of Appeal of the Supreme Court of Western Australia, which comprises the Chief Justice, two senior puisne judges, and a retired judge sitting as a commissioner.

The appeal hinged on two key legal issues: firstly, whether the primary judge failed to consider the low-level purity of the dexamphetamine in sentencing; and secondly, whether the total effective sentence of seven years was excessive, thereby breaching the first limb of the totality principle. The appellant argued that the primary judge did not adequately consider the purity of the dexamphetamine, which was only 2.5%, in determining the severity of the sentence. The appellant further contended that the cumulative sentence of seven years breached the first limb of the totality principle, which requires that the overall sentence should not be disproportionate to the gravity of the offending.

The Court of Appeal found that the primary judge had indeed failed to consider the low-level purity of the dexamphetamine when imposing the sentence. However, the court concluded that this oversight did not result in a manifestly excessive sentence. The court held that the appellant's role as a low-level user-dealer, coupled with the seriousness of the drug offences, warranted a substantial custodial sentence. The Court of Appeal also determined that the total effective sentence of seven years did not breach the first limb of the totality principle. The court held that the sentence reflected the gravity of the offences and the appellant's culpability, taking into account all relevant factors. Consequently, the appeal was dismissed.