I think the intention here may have been—and I obviously wasn't around when the rule was crafted—that the in camera meetings usually occur when it's a question of security of issues you are discussing and when you don't want wide circulation of the information that's being shared by the committee, because of the nature of the business we're discussing.
Therefore, I think the issue Dawn Black raises is an important one. House of Commons staff are governed by certain ethics and codes of conduct because they work for the House of Commons. I think we should limit the staff to staff employed by the House of Commons.
That may have been the intent of the motion the way it's worded.