The parity principle does not require intervention where the effective non-parole period referable solely to the offence (after application of totality) is less than the co-offender's non-parole period. Section 28A(2) Criminal Appeal Act 1912 does not authorise the Court to vary a sentence favourably based on evidence of good conduct on bail where the appeal is otherwise dismissed; it would require a most exceptional case for such consideration.
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