I believe that they do, when they go from one post to another, with the process that's in place right now. That's a background check on the individual alone. As they move from the Minister of Public Safety to Minister of Justice, or whatever it may be--from one post to another--I believe they go through the process again, but once again, it's only on the individual; it's not on spouses, friends, children, parents, and so on.
On June 10th, 2008. See this statement in context.