4SIn making appointments under paragraph 2 above, the Scottish Ministers shall ensure that there is—
(a)a requisite number of appointees who are persons registered under Part 3 of this Act; and
(b)a requisite number of appointees who are persons who either—
(i)use, or have used, care services or services which prospectively are to become care services; or
(ii)care for such persons as fall within sub-head (i) above.