"(1)(a) [where] a person ('the offender') has been convicted by any court of a post-commencement drug trafficking offence; (b) the court has determined that it would be appropriate to impose a sentence of imprisonment for that offence; and (c) the term of imprisonment which the court considers appropriate is a term of four years or more." then the court is bound to impose a travel restriction order with a minimum period of two years."
"Having regard to the impact of the restrictions, the length of an order should be measured to the defendant. Some factors can be enumerated by way of example; his ages, his previous convictions, the risk of reoffending, which can be assessed generally, and of course, as we have mentioned, family contacts, employment considerations and so forth. The length should be that which is required to protect the public in the light of the assessment of the degree of risk which is presented by the facts. But, as we have said, it should be tailored to the defendant to such a degree as the court feels able when balanced against the risk."