A person (not being a member of the forces within the meaning of section 59(1) of the 1983 Act) who is employed in the service of the Crown in a post outside the United Kingdom falls within the class or description referred to in section 14(1)(b) of the 1983 Act if he is required to devote his whole working time to the duties of that post and the remuneration of it is paid wholly out of money provided by Parliament.