[Angus]

Race Relations Act 1976

[F4] 3A Harassment

(1)A person subjects another to harassment in any circumstances relevant for the purposes of any provision referred to in section 1(1B) where, on grounds of race or ethnic or national origins, he engages in unwanted conduct which has the purpose or effect of—.
(a)violating that other person’s dignity, or.
(b)creating an intimidating, hostile, degrading, humiliating or offensive environment for him..
(2)Conduct shall be regarded as having the effect specified in paragraph (a) or (b) of subsection (1) only if, having regard to all the circumstances, including in particular the perception of that other person, it should reasonably be considered as having that effect.].

Beastie this is the relevant section of the Act (which I think was amended and included in 2000) if you decide to report this guy.