ottawa canadian government plan legalize recreational marijuana next july could jeopardy opposition brew among senate concern deadline pass bill rapidly approach senate approval need pass laws though often block bill pass elect house commons senators say police need time prepare also oppose set federal age legal use 18. legalize marijuana recreational use part liberal prime minister justin trudeau 2015 election campaign government set relatively quick deadline put place canada would first group seven country allow drug nationally legislation expect reach upper house december senators say take long need review could put trudeau upper house parliament loggerheads senators elect recently delay government budget bill ultimately pass conservative senator pierre-hugues boisvenu say expect implementation need delay december 2018 early 2019 give police force enough time prepare widespread use drug think early boisvenu say friday phone police tell us today prepare next july boisvenu say conservative senators meet discuss strategy delay bill necessary member parliament bill blair former police chief government point person legislation say add delay regulation put underage users risk mean take time right unnecessary delay unacceptable blair say phone potential clash highlight hurdle trudeau partly set expel liberal senators party caucus 2014 amid expense scandal curb partisanship although trudeau appoint independent senators since formal leverage get government legislation pass government clear majority senate could one point impose party discipline bill vote situation say senator andre pratte independent appoint trudeau 2016. canada government face resistance senate pot law