A nationwide report analysing the behaviours of thousands of Australian drinkers has been launched by the National Drug Law Enforcement Research Fund.
A zero-tolerance approach to a crime like taking drugs must always fail, in the same way as a zero-tolerance approach to alcohol, prostitution or drugs in sport will always fail.
For the first time, scientists have proved that cannabis harms the brain. But the same study challenges previously-held assumptions about use of the drug, showing that some brain abnormalities predate drug use.