5.—(1) The persons who may make a complaint are:
(a)a complainant;
(b)a person authorised by the complainant to act on behalf of the complainant; and
(c)if the complainant is not capable of authorising a person to act on their behalf, a person who appears to SHOW to be appropriate to represent a complainant.
(2) It is for SHOW to determine any question of whether a person is entitled under this regulation to make a complaint.