1. UK classification of cannabis: is a change needed and why?
Louisa Degenhardt, Wayne D Hall, Amanda Roxburgh, Richard P Mattick 
The Lancet 
Volume 370, Issue 9598, (November 2007)
DOI: /S (07)
Copyright © 2007 Elsevier Ltd Terms and Conditions

2. Figure
Number of hospital episodes for cannabis poisoning or dependence, and cannabis arrests or cautions per million population, Australia and England
Sources: Australian Crime Commission; UK Home Office. From 2004 (2003/04 label) the scheduling of cannabis in the UK went from a Class B to a Class C drug; data therefore refer to cautions not arrests. Number per million people aged 15–54 years for Australia, 15–59 years for England. Hospital episodes include separations for cannabis poisoning and cannabis use disorders (not including cannabis-induced psychosis).
The Lancet  , DOI: ( /S (07) )
Copyright © 2007 Elsevier Ltd Terms and Conditions