A young adult offender (aged 20-21) who plays a senior controlling role in a sophisticated organised drug distribution network, negotiating prices, directing co-offenders, and expanding the enterprise, is properly characterised as 'clearly operating as an adult' for sentencing purposes, such that the mitigating effect of youth is significantly diminished. The appropriate adjustment for special circumstances remains a matter within the sentencing judge's discretion, and an appellate court should be slow to intervene.
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