(1) A person shall not publish or display, or cause to be published or displayed, an advertisement which relates to employment and which -

(a) indicates an intention to discriminate, or

(b) might reasonably be understood as indicating such an intention.

(2) For the purposes of subsection (1), where in an advertisement a word or phrase is used defining or describing a post and the word or phrase is one which -

(a) connotes or refers to an individual of one sex or an individual having a characteristic mentioned in any of the discriminatory grounds (other than the gender ground), or

(b) is descriptive of, or refers to, a post or occupation of a kind previously held or carried on only by the members of one sex or individuals having such a characteristic,

then, unless the advertisement indicates a contrary intention, the advertisement shall be taken as indicating an intention to discriminate on whichever discriminatory ground is relevant in the circumstances.