(1) For the purposes of this Part, discrimination shall be taken to occur where -
(a) a person is treated less favourably than another person is, has been or would be treated in a comparable situation on any of the grounds mentioned in subsection (2) (in this Part referred to as the 'discriminatory grounds') which -
(i) exists,
(ii) existed but no longer exists,
(iii) may exist in the future, or
(iv) is imputed to the person concerned,
(b) a person who is associated with another natural person ('the other person') -
(i) is treated, by virtue of that association, less favourably than a person who is not so associated is, has been or would be treated in a comparable situation, and
(ii) similar treatment of the other person on any of the discriminatory grounds would, by virtue of paragraph (a), constitute discrimination.
(2) As between any 2 persons, the discriminatory grounds (and the descriptions of those grounds for the purposes of this Part) are -
(i) that one is a woman and the o
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