50.—(1) Subject to paragraph (2), for the purposes of these Regulations, the holding, otherwise than under a contract of employment, of the office of constable shall be treated as employment, under a worker’s contract, by the relevant officer.
(2) For the purposes of these Regulations, any constable who has been seconded to the National Crime Agency to serve as a member of its staff shall be treated as employed by the National Crime Agency.
(3) Any matter relating to the employment of a worker which may be provided for the purposes of these Regulations in a workforce agreement may be provided for the same purposes in relation to the service of a person holding the office of constable by an agreement between the relevant officer and the central committee.
(4) In this regulation—
“the central committee” means the committee constituted in accordance with regulation 14 of the Police Association for Northern Ireland Regulations 1991(1); and
“the relevant officer” means—
in relation to a member of the Police Service of Northern Ireland or the Police Service of Northern Ireland Reserve, the chief constable; and
in relation to any other person holding the office of constable, the person who has the direction and control of the body of constables in question.