The research effort was conducted in two stages. The first exploratory stage involved a set of semistructured telephone interviews with professionals working in the prison system, while the second stage involved a telephone survey of all heads of custody in the prison system in England and Wales. The research sought to explore the feasibility of several practical proposals for controlling drugs in prisons. These proposals included visit control, environment control, urine testing, and social-strategic control. Research findings demonstrated the complexities of prison drug control, particularly with regard to inmate techniques for avoiding detection, different drug user types (recreational versus dependent users), and the need to maintain a balance between drug control and broader prison control. 22 references and 10 notes