If it succeeds in picking out Theresa May and Amber Rudd as criminals then e can call the trial a success.
As an aside I don't think you can really group "African Caribbean" together. With family coming from the Caribbean and African friends I can't say that it's all the same culture even if there are common roots from hundreds of years ago. In fact you can't really lump the Caribbean together either, a Haitian is quite different to a Cuban and so on.... Of course the same applies to Africa, Morocco has quite a different culture to the Congo....
In the same vain a white middle class person from Glasgow is culturally different to a white middle class person from Sofia.....
Sorry to go on.