(1) In spite of section 1(6), nothing which the Director is authorised or required to do for the purposes of this Part may be done by -
(a) a member of a police force,
(b) a member of the Police Service of Northern Ireland,
(c) [deleted]
(d) [deleted]
(2) In this section -
(a) "member of a police force" has the same meaning as in the Police Act 1996 (c. 16) and includes a person who would be a member of a police force but for section 97(3) of that Act (police officers engaged on service outside their force),
(b) "member of the Police Service of Northern Ireland" includes a person who would be a member of the Police Service of Northern Ireland but for section 27(3) of the Police (Northern Ireland) Act 1998 (c. 32) (members of that service engaged on other police service).