Impact of the National Security Act (2017)

Changes to CSIS investigatory powers, oversight and review under an Act Respecting National Security Matters, 2017 (Bill C-59)

CSIS is mandated to investigate threats to the security of Canada at home and abroad, to advise the government of Canada of these threats, and take measures to reduce such threats. An Act Respecting National Security Matters aims to clarify CSIS authorities, and introduce enhanced oversight and review institutions.



Intelligence Commissioner:

National Security and Intelligence Review Agency:


Justification: Creates a limited justification to commit (or direct) acts or omissions that would otherwise be unlawful to fulfill its mandate.

Key changes:

Datasets: Creates a clear new authority, with accountability and transparency, to collect, retain, and use datasets of non-threat-related, personal information to fulfill its mandate.

Key changes:

Threat reduction: Specifies when a threat reduction measure warrant is required to comply with the Charter, and creates a list of measures permitted under warrant.

Key changes:

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