Where co-offenders are sentenced under different statutory offence categories within a quantity-based drug sentencing regime (commercial vs marketable quantity), the difference in maximum penalties justifies differential sentences and leaves little room for a justifiable sense of grievance under the parity principle. The principle from R v Maygar (different sentencing regimes preclude parity complaints) extends to cases where the different regimes arise from different quantity thresholds within the same statutory scheme.
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