Cannabis users are more likely to commit violent crime pioneering research by five researchers from institutes based in Montreal, Canada has shown.
The project is the first to demonstrate that cannabis is not only linked with violent crime but is the cause. They found no evidence that the link is the other way round – i.e. that violent people are more likely to use cannabis. Violent incidents monitored by the study based on the lives of more than 1,100 American psychiatric patients included assaults, attacks with weapons and rapes.
There was no support, they added, for theories put forward by campaigners anxious to free the drug from the taint of links with crime. The study comes after a series of American states have decriminalised cannabis – despite it being stronger and more potent than the hash smoked by hippies in the sixties – or made it available for medical use.
The team, led by Dr Jules R Dugre, said existing evidence on the links between cannabis and violence was ‘limited’ but their project had ‘clinical and violence risk management implications’. Kathy Gyngell, a fellow of the Centre for Policy Studies think-tank, welcomed the ‘definitive study’ and called for official action. ‘Government has been seriously negligent,’ she said.
More than 20 US states have in recent year’s legalised cannabis for medical purposes. Four states, Colorado, Alaska, Oregon and Washington have allowed its recreational use.
