An interesting post at The Economist on the recent changes to law and police practices in Britain in regard to cannabis cultivation and consumption:
Small growers are squeezing out both importers and the well-connected, often Vietnamese, gangs that once dominated domestic production. The big cannabis factories set up by the latter, with their telltale heat hazes, are fairly easy to spot. Smaller operations are often uncovered only when the electric lights start fires, or when local teenagers mount a burglary.
The police and the courts can neither keep up with the surge in small-scale production, nor are they desperately keen to do so. Last month the government published new sentencing guidelines that advised judges to treat small cultivators less strictly. Attitudes to smokers are softening, too. The reclassification of cannabis in 2009, from class C to the more stringent class B, was oddly accompanied by a more liberal approach to policing consumption. Users caught on the street are rarely arrested; rather, they are issued “cannabis cautions” (a reprimand which doesn’t appear on a criminal record) or fined.
[. . .]
Strangely, this lackadaisical approach is not encouraging people to take up the reefer habit. According to the European Monitoring Centre for Drugs and Drug Addiction, the proportion of people who admit to having used cannabis in Britain has fallen more quickly than in any other European country over the past few years. Just 6.8% of adults told another survey that they used cannabis in 2010, down from 10.9% eight years earlier. The herb is now ubiquitous and effectively tolerated — and, perhaps as a result, not all that alluring.