On Oct. 17, Canada becomes the second, after Uruguay, and largest country with a legal national marijuana marketplace.
U.S. Attorney Bob Troyer of the District of Colorado says the state's weed laws create an opportunity for marijuana to be sold on the black market.
Troyer also told The Denver Post that his office plans to take action soon against a Denver-area chain of marijuana dispensaries.
Multiple states are considering legalization in some form as national politicians warm up to talking openly about cannabis.
Vape & Play is only the second business in Denver to acquire a social consumption license since the program was approved by voters in 2016.
Medical marijuana isn’t snuffed out yet. Sales in June were down, but customers still bought $27 million in medical cannabis.
Colorado's first half-year of legal sales in 2014 couldn't hold a match to the Nevada performed, the latest numbers show.
An Oregon law enforcement report found nearly 70 percent of legal marijuana grown goes unsold.
Molson Coors will attempt to sell pot-infused drinks in Canada, where consumable marijuana will soon become legal.