"The high purity of the cocaine was an aggravating factor, as was your poor record and commission of the offences during a community order. Your age and the impact of the accident you had suffered afforded some mitigation, but the judge was entitled to take the view that, before credit for plea, each offence individually merited 3 years and that a total sentence of 6 years' custody was appropriate. It is not arguable that such a sentence was other than just and proportionate. The judge specifically had regard to totality. You were afforded full credit for your early guilty pleas. Though severe, it is not arguable that your sentence of 4 years' detention was manifestly excessive."