Simply put, sir, you have the power to ensure that veiled women remove their veil, perhaps in the presence of a female clerk or election officer, but you're suggesting you do not wish to exercise that authority, and I'm wondering why.
Evidence of meeting #63 for Procedure and House Affairs in the 39th Parliament, 1st Session. (The original version is on Parliament’s site, as are the minutes.) The winning word was identification.
A recording is available from Parliament.