War Measures Act
The War Measures Act
is a clause in the Canadian Constitution
that allows the government to assume sweeping emergency powers. When the act is invoked, citizens can be arrested and imprisoned without the benefit of trial or even a stated explanation. It essentially creates a period of martial law
in the country.
The act has been invoked three times in Canadian history: World War I, World War II, during the October Crisis of 1970.
This act has been repealed and was replaced with the Emergencies Act in 1988.