5(1)A person does not contravene this Act—
(a)by making or continuing in force rules mentioned in sub-paragraph (2);
(b)by publishing, displaying or implementing such rules;
(c)by publishing the gist of such rules.
(2)The rules are rules restricting to persons of particular birth, nationality, descent or residence—
(a)employment in the service of the Crown;
(b)employment by a prescribed public body;
(c)holding a public office (within the meaning of section 50).
(3)The power to make regulations for the purpose of sub-paragraph (2)(b) is exercisable by the Minister for the Civil Service.
(4)In this paragraph “public body” means a body (whether corporate or unincorporated) exercising public functions (within the meaning given by section 31(4)).