When sentencing for terrorism offences, incapacitation becomes unnecessary if the sentencer is convinced the offence will not be repeated; sincere rehabilitative progress should be rewarded even for offending of the utmost gravity. The utilitarian value of a guilty plea (objective, requiring an identifiable discount) is distinct from willingness to facilitate the course of justice (subjective, informing instinctive synthesis without a specified discount). Post-sentence evidence of genuine renunciation of extremist beliefs, transfer to less secure custody, and endurance of harsh custodial conditions can warrant a significantly lesser sentence on resentencing.
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