10The Secretary of State may appoint not more than two persons to be assessors for him at the proceedings of the Council; and each such assessor (or in his absence from any proceedings such other person as may be nominated by him for the purpose of those proceedings) shall be entitled to attend and speak at the proceedings of the Council and of any committee thereof except the Investigating Committee and the Disciplinary Committee ; but no assessor shall be entitled to vote at any such proceedings.