4.—(1) The following persons shall not be appointed by virtue of section 340C(1)(a), 340D(2)(d) or 340M(2) (the appointment of a person or panel of persons to decide a service complaint, determine an appeal or reconsider a service complaint)—
(a)a person who is the subject of the complaint or is, in the statement of complaint made in accordance with regulations made for the purposes of section 340B(1) and (2), alleged to be implicated in any way in the matter complained of;
(b)an officer of the Naval Chaplaincy Service, the Royal Army Chaplains Department or the Royal Air Force Chaplains Branch.
(2) Additionally, a person who was appointed by virtue of section 340C(1)(a) to decide the complaint, or who was otherwise involved in the investigation or consideration of the complaint for the purposes of deciding the complaint, shall not be appointed by virtue of section 340D(2)(d).