"The plea of res judicata encompasses three types of estoppel: cause of action estoppel, issue estoppel in the strict sense, and issue estoppel in the wider sense - the sense that ordinarily precludes a person from bring fresh proceedings in respect of a matter which could and should have been litigated in earlier proceedings. This wider form of issue estoppel has its origins in the judgment of Sir James Wigram V.C. in Henderson v Henderson (1843) 3 Hare 100 , 155: 'where a given matter becomes the subject of litigation in, and of adjudication by, a court of competent jurisdiction, the court requires the parties to that litigation to bring forward their whole case, and will not (except under special circumstances) permit the same parties to open the same subject of litigation in respect of matter which might have been brought forward as part of the subject in contest, but which was not brought forward, only because they have, from negligence, inadvertence, or even accident, omitted part of their case. The plea of res judicata applies, except in special cases, not only to points upon which the court was actually required by the parties to form an opinion and pronounce a judgment, but to every point which properly belonged to the subject of litigation, and which the parties, exercising reasonable diligence, might have brought forward at the time'."
"The basis of the rule in Henderson is the avoidance of multiplicity of litigation in relation to a particular subject or set of circumstances in order to avoid the prejudice to a defendant which inevitably results in terms of wasted time and cost, duplication of effort, dispersal of evidence and risk of inconsistent findings which are involved if different courts at different times are obliged to examine the same substratum of fact which gives rise to the subject of litigation. The rule is justifiable and justified as a matter both of common sense and common justice between the parties and it is the aspects of prejudice which I have mentioned which will usually render a second bite of the cherry worthy of the description "abuse of process"
"8. I have considered these matters and I have come to the conclusion that essentially what the applicant seeks to do is to re-litigate the same type of allegations which were before the Tribunal in February and March of this year. Whether the doctrine of res judicata applies in its narrower sense to particular allegations, as the respondents say and whose argument I prefer, or whether in the wider sense, as the respondents also say, it seems to me that the issue is the same; they were either allegations which were litigated or, alternatively, allegations which could and should have been litigated and I can see no reason why they could not have been brought before the Tribunal during the earlier proceedings. So far as the allegations are contained in the various paragraphs that I have mentioned, they are not allegations which can now be proceeded with before this Tribunal."
"..... I felt unwanted by the Respondents and singled out for the treatment which I received because being the only black solicitor in the Respondents' employment my face did not fit. I felt that my life as an employee at the Respondents' establishment was continually made so intolerable and unbearable that I could not continue to nor could I reasonably be expected to continue in my employment there. I also felt that the employer-employee relationship had been so severely and continually undermined by my employers and that the implied terms of mutual trust and confidence had been breached by them to such a degree that I could not remain in their employment any longer. Despite my complaints, nothing changed and instead the unacceptable treatment, harassment, victimisation and discriminatory treatment which I was being subjected to continued unabated. If it was not one thing it was another. I was afraid of being subjected to such further treatment and felt that the only way to break the cycle was to leave the employment of the Respondents. On 1 st April 1998, I formally handed in my notice left the employment of the Respondents summarily without notice and pleaded and plead constructive dismissal."
"9 One remaining allegation is of victimisation. This is set out in paragraph 23 of the Originating Application. It arises, says the applicant, in this way. She resigned summarily on1 April 1998 and on that date ceased to be an employee. A few days later, she alleges that a recruitment consultant acting on her behalf approached the respondents' Head of Legal Services requesting a reference. After some delay the applicant herself pursued the matter and spoke to the Director on the telephone on about 16 th April. She alleges that during a telephone call the director told her that he would not be prepared to provide her with a reference since he did not consider it appropriate to do so because she had taken proceedings against the respondents in the Tribunal and because she had resigned. I do not know whether, and if so to what extent those matters or any of them are admitted by the respondents. Presumably they are all denied since that appears to be the position from the Notice of Appearance. If the facts are as the applicant says, it may be that they are capable of amounting to victimisation.The Race Relations Act 1976 defines the circumstances in which discrimination may occur. It defines discrimination in the way it may occur either directly or indirectly in Section 1. Section 2 defines victimisation and sets out the way in which that may arise, but victimisation is a form of discrimination. The Act then applies discrimination to various fields such as employment, contract workers, partnerships, employment agencies, trade unions and the like. Section 4 renders it unlawful to discriminate against an employee in his employment and it matters not whether that discrimination is direct, indirect or by way of victimisation. On the face of the applicant's allegation, the refusal to supply her with a reference, if amounting to victimisation, came at a time when she was no longer an employee. The respondents have referred me to the decision of the Court of Appeal in The Post Office v Adekeye(1997) ICR 110 in which it was held that discrimination could not occur in relation to a person who had been, but who had ceased to be, an employee at the time of the alleged discriminatory act. So it is with this applicant and the allegations contained in paragraph 23 cannot, in my judgment, found a claim of discrimination by way of victimisation."