"In 2010/11 there were almost 600,000 stop and searches for drugs carried out by the police in England and Wales accounting for almost half of all police stop and searches for any reason (Home Office 2012e). This is a five per cent increase on the previous year and continues a trend of increased use of this power. Almost half of the drug searches recorded were carried out in London. Overall, a stop and search for drugs resulted in an arrest in seven per cent of cases across England and Wales with the British Transport Police, South-East England, London, and East Midlands below the national average. This compares to a 12% arrest rate for searches for non-drug reasons. The number of arrests as a result of drugs stop and search was 41,961."


UK Focal Point on Drugs, "United Kingdom Drug Situation 2012 Edition: Annual Report to the European Monitoring Centre for Drugs and Drug Addiction (EMCDDA)" (London, England: UK Government, Department of Health, October 31, 2012), p. 152.