Would you know what those are? Since this a secret document, and it was still left in a place where anyone could have had access to it, whose responsibility would it have been to trace this to know that it was missing? Would it have been the deputy minister's? Would it have been Treasury Board's? Whose responsibility would it have been?
Evidence of meeting #38 for Public Safety and National Security in the 39th Parliament, 2nd Session. (The original version is on Parliament’s site, as are the minutes.) The winning word was know.
A recording is available from Parliament.