Teen cannabis use ‘rises’ with liberalised laws

Usage of cannabis among adolescents is higher in countries that have liberalised drug laws, according to a study.

The research asserts to be the first of its type. It found the effect is strongest for those countries that have liberalised cannabis laws for more than five years.

The study has been criticised by decriminalisation campaigners, who said the results were “skewed” and said prohibition wasted “scarce resources arresting teenagers”.