The parity principle applies to permit comparison between adult sentences and sentences imposed on co-offenders in the Children's Court, though the different sentencing objectives and considerations in the Children's Court limit the worth of the comparison and any adjustment should be relatively modest. A court may decline to intervene where the co-offender's sentence was so inadequate that the sense of grievance can no longer be regarded as legitimate, or where intervention would produce a sentence disproportionate to the objective and subjective criminality involved.
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