William Sterling Blair is a Canadian politician. He is a member of Parliament (MP) in the House of Commons of Canada. He represents the electoral area of Scarborough Southwest, and is a member of the Liberal Party. Blair is the Minister of Public Safety and Emergency Preparedness in Canada's cabinet right now. From 2018 to 2019, he was the Minister of Border Security and Organized Crime Reduction. Before working in politics, Blair was the chief of police for the city of Toronto.