The principles of general and specific deterrence should be sensibly moderated where an offender suffers significant intellectual disability, but the extent of such allowance depends on the evidence of the extent of the disability. A sentencing judge's failure to spell out the approach to moderation does not constitute error where the sentences themselves plainly reflect such moderation. Where cumulation orders contain a mere slip that does not reflect the sentencing judge's clearly stated intention, the Court of Appeal may quash and re-sentence to give effect to that intention.
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