Ontario Labour Arbitration Decision Shows Proving Cannabis Impairment Is Key to Upholding Termination
Quick Hits An Ontario labour arbitrator accepted eyewitness evidence of an employee’s cannabis use based on the distinct smell of marijuana, finding this constituted “clear and cogent evidence” even without formal drug recognition training. The employee’s dismissal was reduced to a three-month suspension because the employer did not prove observable impairment—only that cannabis was consumed during working hours. The employer’s delayed response—waiting until the next day to escalate the concern—eliminated…

