By Marianne Plamondon and Xavier Berwald-Grégoire ( June 11, 2018, 8:54 AM EDT) -- Despite the approaching entry into force of Bill C-45 legalizing the use of recreational cannabis in Canada, a recent publication by the Canadian Centre on Substance Use and Addiction concluded that a majority of employers have not yet addressed and evaluated their internal policies and practices with respect to substance abuse in the workplace....