Control over Parliamentary Committees: The speaker is the Ex-officio Chairman of some of the Committees of the House, such as the Business Advisory Committee and the Rules Committee. He appoints Chairmen of all Committees of the House. He issues directions to the Chairmen in all matters relating to their working. If Government claims that a particular document is secret, but the Committees insist on its production before them, the matter is referred to the Speaker for advice and his instructions are obeyed.