2(1)In the case of an appeal by a member of a police force who is not a senior officer, the police appeals tribunal shall consist of four members appointed by the relevant police authority, of whom—E+W
(a)one shall be a person chosen from the list referred to in paragraph 1(1)(a),
(b)one shall be a member of the authority . . .,
(c)one shall be a person chosen from a list maintained by the Secretary of State of persons who are (or have within the last five years been) chief officers of police, other than a person who is (or has at any time been) the chief officer of police of the force maintained by the relevant police authority, and
(d)one shall be a retired officer of appropriate rank.
(2)The member of the police appeals tribunal to whom sub-paragraph (1)(a) applies shall be the chairman.