"Our conclusion is that the present law on cannabis produces more harm than it prevents. It is very expensive of the time and resources of the criminal justice system and especially of the police. It inevitably bears more heavily on young people in the streets of inner cities, who are also more likely to be from minority ethnic communities, and as such is inimical to police-community relations. It criminalizes large numbers of otherwise law-abiding, mainly young, people to the detriment of their futures. It has become a proxy for the control of public order; and it inhibits accurate education about the relative risks of different drugs including the risks of cannabis itself."

Source

Police Foundation of the United Kingdom, "Drugs and the Law: Report of the Independent Inquiry into the Misuse of Drugs Act of 1971", April 4, 2000. The Police Foundation, based in London, England, is a nonprofit organization presided over by Charles, Crown Prince of Wales, which promotes research, debate and publication to improve the efficiency and effectiveness of policing in the UK.