Canada's prime minister has introduced gun-control legislation that would freeze new handgun purchases, and introduce a mandatory buyback program for some assault-style weapons.

• Trudeau cited a succession of mass shootings in Canada over the years, as well as recent assaults in the United States, as part of his government’s motivation to propose Bill C-21 during a press conference in Ottawa.
• Canada has stronger gun ownership laws than the United States, gun control supporters have campaigned for tougher regulations in recent years in the wake of a number of mass shootings, including a 2017 attack on a Quebec mosque that killed six worshipers and a fatal shooting in Toronto in 2018.
• The AR-15 weapon, which was used by a shooter to murder 26 adults and children in the Sandy Hook tragedy in the United States in 2012, and the Ruger Mini-14 rifle, which was used by a gunman to murder 14 women at a Montreal engineering school in 1989, were among those banned.