On the applicant's behalf it is submitted the appropriate starting point, before taking into account mitigating factors, was six years imprisonment. The applicant was a mature adult who traded in a Sch 1 dangerous drug. He was active in his illicit trade, as part of a well organised network, for an extended period of time. He was motivated, at least in part, by the prospect of financial gain, even though he used his profits largely to support his addiction. Even allowing for his early plea of guilty and his apparent rehabilitation, a period of seven and a half years imprisonment was within the range of possible sentences indicated in the authorities, see R v Barton [2006] QCA 367, especially at [15], where a head sentence of seven years was accepted by this Court as within range in a roughly similar case. The applicant submits that a comparison with Barton's case suggested the present sentence was excessive, but in Barton's case the period of trafficking was only two and a half months, and the applicant in this case played an important role in a large production and distribution network.