"Racial discrimination may be established as a matter of direct primary fact. For example, if the allegation made by Ms Simon of racially abusive language by the headteacher had been accepted, there would have been such a fact. But that allegation was unanimously rejected by the tribunal. More often racial discrimination will have to be established, if at all, as a matter of inference. It is of the greatest importance that the primary facts from which such inference is drawn are set out with clarity by the tribunal in its fact-finding role, so that the validity of the inference can be examined. Either the facts justifying such inference exist or they do not, but only the tribunal can say what those facts are. A mere intuitive hunch, for example, that there has been unlawful discrimination is insufficient without facts being found to support that conclusion." (See also Balcombe LJ, at p 128 , para 33(3).) In the present case, it was necessary for the tribunal to examine all the allegations made by Dr Qureshi of other incidents relied upon by him as evidentiary facts of race discrimination in the matters complained of. There is a tendency, however, where many evidentiary incidents or items are introduced, to be carried away by them and to treat each of the allegations, incidents or items as if they were themselves the subject of a complaint. In the present case it was necessary for the tribunal to find the primary facts about those allegations. It was not, however, necessary for the tribunal to ask itself, in relation to each such incident or item, whether it was itself explicable on "racial grounds" or on other grounds. That is a misapprehension about the nature and purpose of evidentiary facts. The function of the Tribunal is to find the primary facts from which they will be asked to draw inferences and then for the tribunal to look at the totality of those facts (including the respondent's explanations) in order to see whether it is legitimate to infer that the acts or decisions complained of in the originating applications were on "racial grounds"