Calgary Only 1 marijuana-impaired driving charge laid in Calgary since legalization Social Sharing Facebook Twitter Email Reddit LinkedIn 8 drug-impaired driving charges laid in 12 months in Alberta, government says Meghan Grant · CBC News “Despite all the alarmism with the police and the government saying this was going to be a huge problem, it has turned out to be exactly the opposite,” says Tim Foster, one of the city’s top impaired driving defence lawyers. (CBC