The Calgary Police Service wants more information and more funding for drug impairment recognition training for front-line officers before marijuana becomes legal in Canada.

At a meeting of the Calgary police commission this week, CPS outlined the steps the service is taking following the announcement this week that the Liberal government will introduce legislation to legalize pot by July 1, 2018.

Sgt. Richard Butler, who heads the force's alcohol and drug recognition unit, warned the legalization of the drug in other jurisdictions has been accompanied by a rise in collision rates and costs associated with policing drug-impaired drivers.

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Meghan Potkins ~ CalgarySun via 420Intel.com ~