Canada’s municipalities are in a tough position when it comes to pot. Faced with a previous federal government that had no interest in legalizing marijuana or modifying its obtuse mail-order medical-marijuana program, Toronto and Vancouver have swiftly become home to more than 250 dispensaries that operate outside the law, with more than 100 now open in Ontario’s capital. Cities facing pressure from citizens to crack down on the flourishing businesses are discovering they may lack the legal authority to do so. (Editorial: Yes to marijuana legalization. No to the pre-legalization free-for-all)