We do have the book of photos, but I don't know how reasonable it is to expect our members to have committed to memory.... I think that, as I said, it's a shared responsibility, and members of Parliament are identifying themselves. Certainly in this case, the member identified himself. That, if the member doesn't recognize him, should alert the member to kick into his mode of respecting the privilege.
I don't think it's reasonable to think that every member on the Hill knows every member of Parliament, but they're sure trying. We have, as I say, photos of all parliamentarians in their possession, and they're briefed regularly, particularly in advance, so that members who would identify themselves as a member of Parliament, if they weren't recognized, could be easily confirmed.