The only element of the Johnston report I would take issue with is the notion of a top secret system that a minister may or may not have had access to. I know such systems exist within Global Affairs Canada and exist within the Privy Council Office. I've never personally used one, so I doubt very much that a minister's office.... I don't know how the Minister of Public Safety's office is set up, but since I joined the Canadian government about 10 years ago, all of the intel I have ever seen has come in hard copy.
Evidence of meeting #82 for Procedure and House Affairs in the 44th Parliament, 1st Session. (The original version is on Parliament’s site, as are the minutes.) The winning word was chair.
A video is available from Parliament.