When sentencing for multiple counts of drug manufacture, the court must fix an appropriate sentence for each offence having regard to its individual circumstances before considering cumulation, concurrence and totality. Identical concurrent sentences imposed without distinguishing between different drugs or different transactions constitute error under Pearce v The Queen. The potential yield of a manufacturing operation is relevant to the assessment of overall culpability but an offender cannot be sentenced on the assumption that the full potential quantity would have been manufactured. Manufacture of a precursor drug (P2P) is less serious than manufacture of the end product (amphetamine) and sentences should reflect this distinction.
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