(1) Except as provided by paragraphs (2), (3)(a) and (4) of this article, any officer employed immediately before the material date by —
(a) one of the old authorities; or
(b) the old authorities jointly, is on the material date transferred to the employment of the new authority.
(2) Any officer employed immediately before the material date by Bloomsbury Health Authority for or in connection with the provision of a service of a description specified in Schedule 2 to this Order (in this Order called a “specifically transferred service”) and for no other purpose, is on the material date transferred to the employment of Parkside Health Authority.
(3) Any officer employed immediately before the material date by Bloomsbury Health Authority partly for or in connection with the provision of a specially transferred service, and partly for other purposes who, at any time before 1st January 1991 agrees in writing with his employing authority to transfer his employment to Parkside Health Authority in consequence of the making of this Order is, on the date specified in that agreement (being a date which is not earlier than the material date or the date of that agreement), transferred to the employment of Parkside Health Authority —
(a) if that date is the material date, from the employment of Bloomsbury Health Authority;
(b) if that date is after the material date, from the employment of the new authority.
(4) Where —
(a) this article makes provision for the transfer of an officer, and
(b) the officer in question is employed jointly by one or both of the old authorities and another person, that provision shall have effect to transfer that officer to the employment of the new authority, or as the case may be of Parkside Health Authority and that other person jointly.