49.— (1) Subject to subsection (2) and any regulations under section 53 , the Executive shall establish procedures for—

(a) dealing with complaints against the Executive or a service provider, and

(b) reviewing, at the request of a complainant, any recommendation made by a complaints officer following the investigation of a complaint.

(2) Any service provider may, with the agreement of the Executive, establish procedures, in place of the procedures established under subsection (1)(a), for dealing with complaints against the service provider.

(3) The Executive may agree to a service provider establishing such procedures if satisfied that they will be of a comparable standard to the procedures established by the Executive under subsection (1)(a).

(4) Subject to any regulations under section 53 , the Executive may assign to another body the Executive's functions in relation to reviewing, and establishing procedures for reviewing, any recommendation made by a complaints officer.