Rules of the Senate
Appendix III: Cabinet Ministers Being Members of Senate Committees
(Extract from the Eleventh Report of the Standing Committee on Standing Rules and Orders of Wednesday, May 14, 1986. The report was adopted by the Senate on June 12, 1986.)
The Standing Committee on Standing Rules and Orders examined that matter of whether or not Senators who are cabinet ministers, including the Leader of the Government in the Senate, should be members of Senate Committees, and concluded that it is desirable to have the Leader of the Government in the Senate and the Leader of the Opposition in the Senate as members ex officio of all select Committees of the Senate, as provided for in Rule 68 [currently rule 12-3(3)], but that your Committee considers it undesirable to have any cabinet minister other than the Leader of the Government as a member of Senate Committees.