Commissioners from time to time appointed shall have such office accommodation as the Treasury may determine, and the Secretary of State may from time to time, with the consent of F1the Minister for the Civil Service as to number, appoint or employ such officers, clerks, and messengers as shall be necessary for the purposes of this Act. There shall be paid to each of such officers, clerks, and messengers such remuneration as the Treasury may from time to time determine.