12.—(1) Subject to regulation 13, these Regulations have effect in relation to Crown employment and persons in Crown employment as they have effect in relation to other employment and other employees and workers.
(2) In paragraph (1) “Crown employment" means employment under or for the purposes of a government department or any officer or body exercising on behalf of the Crown functions conferred by a statutory provision.
(3) For the purposes of the application of the provisions of these Regulations in relation to Crown employment in accordance with paragraph (1)—
(a)references to an employee and references to a worker shall be construed as references to a person in Crown employment to whom the definition of employee or, as the case may be, worker is appropriate; and
(b)references to a contract in relation to an employee and references to a contract in relation to a worker shall be construed as references to the terms of employment of a person in Crown employment to whom the definition of employee or, as the case may be, worker is appropriate.