The question and its shocking answer are implicit in the title of Richard Norton-Taylor and Nicholas Kent's riveting piece of documentary theatre, which brings audiences to its feet night after night, not for a standing ovation but in a minute's silent reflection upon the murder of Stephen Lawrence. In the experience of the Lawrence family, the colour of justice is certainly not black. In the context of the Metropolitan Police's slipshod, dishonest, incompetent and corrupt investigation of Lawrence's killing, they could be left in no doubt that the colour of justice in Britain is white.

As the evidence builds, working its way up through the ranks of the Met and culminating in the appalling sight of one of the acquitted young white racists, blatantly lying and smirking his way back out onto the streets, one's heart goes out to the silent, dignified figures of Neville and Doreen Lawrence, who took on the British justice system but, with their son dead and buried in Jamaica, cannot ever win.

Kent's Tricycle Theatre Company has become extremely adept at this brand of verisimilitude drama, here using verbatim transcripts from the Macpherson Inquiry into the investigation of what a coroner's jury described as " . . . a completely unprovoked racist attack by five white youths". In a build-up of tension similar to that of the Watergate investigation, the truth dawns that the rot is by no means confined to the junior ranks. An incredibly poised and fluent cast recreates the courtroom scene with total authenticity, bringing the characters of the team of lawyers, dominated by the flamboyant Michael Mansfield, disconcertingly to life.

At the Belfast Grand Opera House until Saturday. Doreen Lawrence will attend the performance on Friday. To book phone 0801-232-241919