6.—(1) The Commission may with the approval of the Department and the Department of Finance and Personnel as to numbers and as to remuneration and other terms and conditions of employment—
(a)employ such officers and servants as the Commission considers necessary;
(b)employ the services of such other persons as the Commission considers expedient for any particular purpose.
(2) The Commission may, in the case of such persons employed by it as may be determined by the Commission with the approval of the Department and the Department of Finance and Personnel, pay to or in respect of them such allowances (including allowances for expenses), pensions or gratuities, or provide and maintain for them such pension schemes (whether contributory or not), or contributory or other pension arrangements, as may be so determined.