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War Measures Act
The War Measures Act was a federal law adopted by Parliament on 22 August 1914, after the beginning of the First World War. It gave broad powers to the Canadian government to maintain security and order during “war, invasion or insurrection.” It was used, controversially, to suspend the civil liberties of people in Canada who were considered “enemy aliens” during both world wars. This led to mass arrests and detentions without charges or trials. The War Measures Act was also invoked in Quebec during the 1970 October Crisis. The Act was repealed and replaced by the more limited Emergencies Act in 1988.