I'd just like to read Standing Order 18 of the House of Commons:
No Member shall speak disrespectfully of the Sovereign, nor of any of the Royal Family, nor of the Governor General or the person administering the Government of Canada; nor use offensive words against either House, or against any Member thereof. No Member may reflect upon any vote of the House, except for the purpose of moving that such vote be rescinded.
So that's quite clear. To bring a former Lieutenant Governor before this public accounts committee is most disrespectful, Mr. Chairman; therefore, it has to be ruled out of order.