UK drug data

http://image.guardian.co.uk/sys-files/Guardian/documents/2005/07/05/Report.pdf

A report on UK drug use from the British government, published by the Guardian newspaper.
Some very interesting takes on things. Like this, on page 2 of the summary:
"Even if supply side interventions were more effective, it is not clear that the impact on the harms caused by serious drug users would be reduced."
And on page 30, chart showing that individuals who abuse both heroin and crack commit 75% of all crime associated with these drugs.
See page 35 regarding comparable harms from drugs of abuse.