Mandate, Duties and Functions

CSIS Act: CSIS collects information and intelligence on activities suspected of constituting threats to the security of Canada and advises the Government of Canada. CSIS also supports other Government of Canada departments and agencies through security screening and foreign intelligence collection.

Core mandate

Investigate threats

Reduce threats

Threats to the security of Canada

Support to other Government departments and agencies

Security screening

Collect foreign intelligence

Enabling authorities: Authorities that contribute to CSIS effectively and efficiently fulfilling its mandate



Information sharing / disclosure

Protection of human sources


Justification framework

Review and oversight

All CSIS activities are subject to review by the National Security and Intelligence Review Agency, and the National Security and Intelligence Committee of Parliamentarians. The Intelligence Commissioner provides oversight by examining and approving certain decisions of the Minister, including the classes of Canadian datasets that CSIS can collect and classes of otherwise illegal activity pursuant to the justification framework.

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