3.—(1) The Technical Advisory Board must consist of at least thirteen members but no more than fifteen members.
(2) Six members (and no more than six members) must be persons holding an office, rank or position with either—
(a)a person on whom obligations may be imposed by virtue of retention notices under Part 4 of the Act, national security notices under section 252 of the Act or technical capability notices under section 253 of the Act, or
(b)a person representing the interests of such persons.
(3) The members to whom paragraph (2) applies must be persons with sufficient knowledge and experience to be likely effectively to represent the interests of persons on whom obligations may be imposed by virtue of retention notices under Part 4 of the Act, national security notices under section 252 of the Act or technical capability notices under section 253 of the Act.
(4) Six members (and no more than six members) must be persons holding an office, rank or position with either—
(a)a person entitled to apply for warrants under Part 2, 5, 6 or 7 of the Act or authorisations under Part 3 of the Act, or
(b)a person representing the interests of such persons.
(5) The members to whom paragraph (4) applies must be persons with sufficient knowledge and experience to be likely effectively to represent the interests of persons entitled to apply for warrants under Part 2, 5, 6 or 7 of the Act, or authorisations under Part 3 of the Act.
(6) One member must be appointed, and two further members may be appointed, who are not persons to whom paragraph (2) or (4) applies.
(7) One such member must be appointed chair and one other such member may be appointed deputy chair.