For importation, the patient should contact the Embassy of the country of destination and request permission to import methadone onto their shores, although not all countries allow the importation of controlled drugs. The licence also allows for the re-importation of any remaining methadone back into the UK. It is normal for patients travelling overseas to be prescribed methadone in a tablet form, as tablets are easier to transport. For patients who expect to be overseas for a prolonged period of time, "courtesy" arrangements should be made at a local clinic which will arrange for the prescription of the necessary medication. Methadone maintenance is otherwise known as drug replacement therapy or ORT (opiate replacement therapy), and has been the subject of much controversy since its inception. In England and Wales, criminal justice drugs workers employed by the 'Drug Interventions Programme' are based in most arrest suites nationwide. Heroin and crack cocaine users are identified either by mandatory urine tests (in areas known as DIP 'intensive'), or by cell-sweeps and face-to-face discussions with arrestees (in areas known as DIP 'non-intensive' sites). Identified drug use will often trigger a referral to local drug services, whose first line response to heroin dependence is likely to involve substitute (buprenorphine or methadone) prescribing. This line of work originated in the mid- to late-1990s, as large-scale studies identified significant levels of heroin and crack cocaine use in populations of arrestees (particularly for theft offences). In a large-scale study of drug misuse in arrested populations, Holloway and Bennett identified 466 'drug misusing repeat offenders'. Of these, 80% declared an 'unmet need for treatment' (2004:33)  Contemporaneously, the National Treatment Outcomes Research Study (NTORS) found high levels of acquisitive (money-related) offending in populations of people seeking community treatment for drug problems. In one early NTORS report, Godfrey et al. identified that every £1 spent on drug treatment could yield between £9.50 and £18 of savings in social costs, mostly attributable to reductions in treatment seekers' levels of offending. These studies, along with others, were taken on by Tony Blair whilst still Shadow Home Secretary, as Conservative policy regarding drug misuse was relatively undeveloped. Blair disseminated a press release in 1994 entitled Drugs: the Need for Action, claiming that drug misuse caused £20bn of acquisitive crime each year; a report dismissed by the Conservative Secretary of State for the Home Department as 'four pages of hot waffle against the Government, with three miserable paragraphs at the end' (Hansard, 10 March 1994, column 393).