But it has been the previous.... By having support staff come during in camera and then having the PS position, actually the committee was changed, and that's the reality. It wasn't the thing that happened for the history of Parliament. It was changed under the Paul Martin administration. That's when the PS was introduced into the committee system. Prior to that, it was not the practice.
Evidence of meeting #1 for Industry, Science and Technology in the 41st Parliament, 1st session. (The original version is on Parliament’s site, as are the minutes.) The winning word was chair.
A recording is available from Parliament.