Canadian Security Intelligence Service (CSIS, French: Service canadien du renseignement de sécurité, SCRS), is the forefront of Canada's national security system. Its role is to investigate activities suspected of constituting threats to the security of Canada and to report on these to the Government of Canada.
CSIS reports to and advises the Minister of Public Safety on national security issues and situations that threaten the security of the nation. It is headquartered in Ottawa, Ontario in a purpose-built facility that was completed in 1995.
CSIS is responsible to Parliament through the minister of public safety, and is overseen by the National Security and Intelligence Review Agency. The agency is also subject to review by the Federal Court.
The current director of CSIS is the ninth, being David Vigneault, who assumed the role on June 19, 2017.