In relation to racial discrimination—
Being of a particular racial group is a genuine occupational qualification for a job only where—
Subsection (2) applies where some only of the duties of the job fall within paragraph (a), (b) (c) or (d) as well as where all of them do.
Paragraph (a), (b), (c) or (d) of subsection (2) does not apply in relation to the filling of a vacancy at a time when the employer already has employees of the racial group in question—