Quebecers under the age of 21 won't be able to buy or possess recreational cannabis as of Wednesday.

The Quebec government has adopted its long-awaited cannabis law.

The Quebec government says it won't change its marijuana legislation despite getting a warning from the federal government over allowing cannabis plants at home.

From a not guilty verdict in the Lac-Mégantic trial, to the medical community's warning on the potency of pot, here are the biggest stories Global News covered in Montreal this week.