15. Each local authority must ensure that, having regard to—
(a)the size of the authority and its statement of purpose; and
(b)the need to safeguard and promote the health and welfare of children who may be, or have been, placed for adoption by or who may receive or are receiving adoption support services from the authority,
there is a sufficient number of suitably qualified, competent and experienced persons working for the purposes of the adoption service, and that the local authority has a clear written recruitment policy for recruiting its staff.