CHAPTER 4
PARLIAMENT
PART II
POWERS, PRIVILEGES AND PROCEDURE OF PARLIAMENT
55. Privileges and immunities of Parliament
55. (2) No civil or criminal proceedings may be instituted against any member of either House for words spoken before, or written in a report to, the House of which he is a member or in which he has a right of audience under section 62 or a committee thereof or any joint committee or meeting of the Senate and House of Representatives or by reason of any matter or thing brought by him therein by petition, bill, resolution, motion or otherwise; or for the publication by or under the authority of either House of any report, paper, votes or proceedings.
(3) In other respects, the powers, privileges and immunities of each House and of the members and the committees of each House, shall be such as may from time to time be prescribed by Parliament after the commencement of this Constitution and until so defined shall be those of the House of Commons of the Parliament of the United Kingdom and of its members and committees at the commencement of this Constitution.
(4) A person called to give any evidence before either House or any committee shall enjoy the same privileges and immunities as a member of either House.
State privileges and immunities
Immunity - national proceedings
EDIT.