In a case of national security, which would normally involve things that would threaten the security of the nation, such as acts of subversion or terrorism or political violence, it seems to me that invoking the act would not just be the decision of the Solicitor General, the client in this case, Mr. Gray, but would require the decision of the Minister of National Defence or perhaps even of cabinet itself.
Dans un cas de sécurité nationale, qui touche généralement des aspects menaçant la sécurité du pays tels que des actes de subversion ou de terrorisme, ou encore la violence politique, il me semble que la décision d'invoquer cette loi ne relève pas uniquement du solliciteur général, du client en cause, M. Gray, mais du ministre de la Défense nationale, voire du Cabinet.