The Globe and Mail reports in its Saturday, June 15, edition that Canada's plan to strictly limit the potency of edible cannabis products is aimed at protecting people who may accidentally consume them, but the new rules will not discourage some consumers from resorting to the black market, critics say. The Globe's Mike Hager writes that crushing the sizable underground trade in cannabis was a core priority for the Liberal government when it legalized cannabis last fall. On Friday, Ottawa announced a "limited selection" of next-generation cannabis products such as edibles will "gradually" hit retail shelves no earlier than mid-December. Edible cannabis, whether foods or beverages, will have a cap of 10 milligrams of tetrahydrocannabinol (THC) per package, according to the rules, Health Canada officials told reporters in a conference call on Friday. Cannabis extracts for inhalation or topicals, such as pot-infused lotions, will have a cap of 1,000 milligrams of THC per package. These limits on THC were created to curb the damage to people who accidentally consume these products as well as to those who take too much. Those dosage caps pale in comparison to what is currently being offered in the illicit market.