Before you answer that, can I provide some input because that's pretty important?
Correct me if I'm wrong, but I believe that's one of the agents of Parliament, and if so, normally the experience is that there's a broad breadth of questions you can ask because they're answerable to Parliament, not to government. If you deny parliamentarians an opportunity to ask any question.... They're pretty sharp. They'll tell you pretty quick whether that's germane to the points they're raising.
I wanted to jump in, Chair, and just caution that I would be very surprised and have a bit of a problem if you were to rule that ahead of time you were going to start contracting the questions that we can ask an agent of Parliament. To me, that's really starting to speak to the rights and privileges of members and the separation between Parliament as the legislative arm and government, which is the executive arm.