Section 21 — Privacy Act: International affairs and defence

The head of a government institution may refuse to disclose any personal information requested under subsection 12(1) the disclosure of which could reasonably be expected to be injurious to the conduct of international affairs, the defence of Canada or any state allied or associated with Canada, as defined in subsection 15(2) of the Access to Information Act , or the efforts of Canada toward detecting, preventing or suppressing subversive or hostile activities, as defined in subsection 15(2) of the Access to Information Act , including, without restricting the generality of the foregoing, any such information listed in paragraphs 15(1)(a) to (i) of the Access to Information Act .