"The Emergencies Act can only be invoked when a situation "seriously threatens the ability of the Government of Canada to preserve the sovereignty, security and territorial integrity of Canada" & when the situation "cannot be effectively dealt with under any other law of Canada," the twitter thread continues.

Update (1715ET): As expected, Canadian PM Trudeau invoked sweeping emergency police powers Monday in his latest attempt to stamp out dissent from citizens protesting vaccine mandates and other COVID restrictions. 

"This is not a peaceful protest," the Canadian leader told reporters in Ottawa alongside top cabinet officials. "The federal government is stepping in because local police authorities have had difficulty enforcing the law," he said.