70. (1) Subject to the provisions of this Constitution and to the rules and standing orders regulating the procedure of the Federal Parliament, there shall be freedom of speech in the Federal Parliament, and no member of the Federal Parliament shall be liable to any proceedings in any court in respect of anything said or any vote given by him in the Federal Parliament or any committee thereof, and no person shall be so liable in respect of the publication by or under the authority of either House of the Federal Parliament of any report, paper, votes or proceedings.
(2) In other respects, the privileges, and immunities of members of the Houses shall be such as may from time to time be defined by Act of the Federal Parliament, and, until so defined, shall be such as are enjoyed by the members of the House of Commons of the Parliament of the United Kingdom at the commencement of this Constitution.
(3) The provisions of sub-sections (1) and (2) of this section shall apply in relation to persons who by virtue of this Constitution have the right to speak in, and otherwise take part in the proceedings of, a House of the Federal Parliament as they apply in relation to members of the Federal Parliament.