10. Each House shall make its own rules and standing orders, with power to attach penalties for their infringement, and shall have power to ensure freedom of debate, to protect its official documents and the private papers of its members, and to protect itself and its members against any person or persons interfering with, molesting or attempting to corrupt its members in the exercise of their duties.
11. 1° All questions in each House shall, save as otherwise provided by this Constitution, be determined by a majority of the votes of the members present and voting other than the Chairman or presiding member.
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13. The members of each House of the Oireachtas shall, except in case of treason as defined in this Constitution,
felony or breach of the peace, be privileged from arrest in going to and returning from, and while within the precincts of, either House, and shall not, in respect of any utterance in either House, be amenable to any court or any authority other than the House itself.