(1) The Technical Advisory Board established by section 13(1) of the 2000 Act shall consist of 13 persons.
(2) Of that number one person, who does not fall within paragraph (3), shall be appointed chairman.
(3) Of the remaining number—
(a) six shall be persons holding an office, rank or position with either—
(i) a person on whom obligations may be imposed under section 12 of the 2000 Act, or
(ii) a body representing the interests of such persons, and
(b) six shall be persons holding an office, rank or position with either—
(i) a person by or on whose behalf applications for interception warrants may be made, or
(ii) a body representing the interests of such persons.