Whether rehabilitation reduces crime more than prison has been the subject of considerable debate for more than a century. [1] Not all treatments work and the twelve step model used by most rehab clinics does not work and almost all the success in treatment for addictive substances (in this case alcohol) comes down to the willpower to initially take treatment rather than the treatment itself. [2] Obviously those who are sentenced to drug treatment programs rather than prison are not making that crucial first step so the programs are unlikely to be very successful.  We also should remember that many of those who are in prison who are addicts are also violent criminals [3] and those who commit criminal acts should got to prison to prevent them being a threat to others as well as to punish that act. Treatment as a sentence is only a sensible alternative if the offender’s only crime is possession of drugs.  [1] Cullen, Francis T., and Gendreau, Paul, ‘Assessing Correctional Rehabilitation: Policy, Practice, and Prospects’, in Policies Processes, and Decisions of the Criminal Justice System, 2000, pp.111-113.  [2] Johnson, Bankole A., ‘We’re addicted to rehab. It doesn’t even work’, The Washington Post, 8 August 2010.  [3] ‘Breaking the Cycle of Drugs and Crime’, 1999 National Drug Control Strategy, 1999.