The majority of people in this country do not nor have ever taken an illegal substance; and the majority of those who have are experimenters or casual users, who are never faced with undergoing a drug addiction rehabilitation programme. A majority of illegal drug users do so for so-called "recreational purposes". By far the minority of illegal drug users - between 100,000 and 200,000 people - need a drug addiction treatment programme. Many clinics providing drug addiction rehabilitation programme services in the UK have developed in the private healthcare sector.
