"18. These are the facts upon which the Tribunal have to make a decision. We have to be satisfied that the principal reason for the dismissal by the respondents was the fact that the applicants had joined or had intended to join a recognised trade union. The Tribunal has to satisfied on the ordinary test, the test which is applicable in civil courts which is on the balance of probabilities. It is not for the applicants to satisfy us beyond a reasonable doubt. We have to look at the evidence, we have to weigh it on that basis. There is no direct evidence that the respondents acted at they did because of the applicant having joined a trade union. In fact if not daily at least weekly we deal with discrimination cases where it is very rare that there will be any direct evidence of discrimination. In just the same way that employers rarely say to employees we are treating you in the way we are treating you because of your colour or your sex it is very unlikely that an employer will say to an employee "I am treating you in this way because of your trade union membership." What we have to do is follow the guidance of the Employment Appeal Tribunal in a discrimination case, Kana v Ministry of Defence[1981] IRLR 331 , where it is said that the affirmative evidence of discrimination will normally consist of inferences to be drawn from the primary facts. If the primary facts indicate that there has been discrimination of some kind, the employer is called upon to give an explanation and a fairly clear and specific explanation being given by the employer to the satisfaction of the Industrial Tribunal. If such is not given, this will permit an inference of unlawful discrimination from the primary facts. In this case we have the applicants saying "Look, I protested about the change in my conditions of working, I engaged the services of the trade union to assist me in my protest and I was dismissed. There were other people who complained about their lot, they were not represented by the trade union and they were not dismissed." The respondents answer is "We did not think about the trade union aspect we simply had two employees who were refusing to operate a new system and we therefore dismiss them as we were entitled to do." The Tribunal having considered the evidence is of the view that although it may well have been that one factor behind the decision was that the employees were refusing to carry out their reassigned duties, the principal reason for their dismissal was that they had joined the trade union and sought to use the trade union as the means of making their protest. That being so as we are satisfied that the principal reason for their dismissal was their joining the trade union, this is an automatically unfair dismissal within the provisions of Section 152 of the 1992 Act and accordingly this application must succeed."
"(1) For purposes ofPart V of the Employment Protection (Consolidation) Act 1978 (unfair dismissal) the dismissal of an employee shall be regarded as unfair if the reason for it (or, if more than one, the principal reason) was that the employee - (a) was, or proposed to become, a member of an independent trade union, or (b) had taken part, or proposed to take part, in the activities of an independent trade union at an appropriate time, ..."
"In our judgment, the activities of a trade union officer in negotiating and elucidating terms of employment is, to use a prayer book expression, the outward and visible manifestation of trade union membership. It is an incident of union membership which is, if not the primary one, at any rate, a very important one and we see no genuine distinction between membership of a union on the one hand and making use of the essential services of a union, on the other.
" I regard that decision as unquestionably correct, and it had to be borne in mind in considering the reasons of the industrial tribunal in the present case. The decision means at the least that it is open to an industrial tribunal to hold that an employee has been dismissed or penalised for being a member of a union if he been dismissed or penalised for invoking the assistance of the union in relation to his employment. To put it another way, in an appropriate case the tribunal of fact has power to be robust in its findings. Section 23 refers, of course, to the "purpose" of the employer in taking the action in question, while section 58 refers to the "reason" for action taken, that is to say, dismissal, I agree, however, with Wood J. in his judgment in the present case [1993] I.C.R. 101, 111c, that there is little relevant distinction to be drawn between "purpose" and "reason", because the purpose of the employer will in general be a reason for the action he takes."
"What is now the standing of Discount Tobacco? Should it still be followed in similar circumstances, or has it in practice received a judicial kiss of death?"
"Having reached a conclusion on the new point which is decisive of both appeals, I do not find it necessary to go into these questions in any detail ..."
" I do not question the correctness of the Employment Appeal Tribunal's decision in the Armitage case. Once the industrial tribunal had rejected the employers' evidence as to their reason for Mrs Artmitage's dismissal, it was an obvious inference that she had been dismissed because the employer resented the fact that she had invited the union to intervene on her behalf. In this narrow context the reasoning of Know J. may have been a legitimate means of refuting a particular argument advanced by the employers' representative. But if the passage cited is held to establish as a general proposition of law that, in the context of section 23(1)(a) and section 58(1)(a) of the Act of 1978, membership of a union is to be equated with using the "essential" services of that union, at best it puts an unnecessary and imprecise gloss on the statutory language, at worst it is liable to distort the meaning of these provisions which protect union membership as such."
" In supporting the finding in paragraph 62, the Court of Appeal was much influenced by the observations of Knox J. in Discount Tobacco & Confectionery Ltd v. Armitage (Note) , post p. 431, a decision which the court regarded as unquestionably correct. It may well have been correct on its facts. Having rejected the evidence given by Mrs Armitage's employers, the tribunal was entitled to infer that the real reason for her dismissal was that she was a member of the union and made use of the union's services to press her complaint. But, like Lord Bridge of Harwich I cannot regard the case as authority for the broad proposition that membership of the union and making use of the union's services are in some way to be equated. In my view, section 23(1)(a) was intended to protect trade union membership as such, that is to say, the right to associate as members of an independent trade union, just as section 23(1)(b) was intended to protect those taking part in trade union activities at an appropriate time. I can see no justification for reading in the words "or making use of the essential services of the union" in section 23(1)(a) and still less justification for regarding trade union membership and the use of trade union services as the same thing. They do not mean the same thing in section 23(1)(c). So why should they mean the same thing in section 23(1)(a)? I do not accept Know J.'s view, post p. 433E, that this would reduce section 23(1)(a) to vanishing point. Unions may flourish even though they are not recognised for collective bargaining. In so far as the industrial tribunal relied on the broad statement in the Armitage case in reaching their "robust" conclusion in paragraph 62 (see per Dillon L.J. [1994] I.C.R. 97, 110), they erred in law."
" I prefer to express no view on the membership issue also discussed by my noble and learned friend [Lord Bridge]. As at present advised I would not share his view on the issue but is unnecessary to express any concluded view since the decision of this case does not turn on that point."
" Like Dillon L.J. in the Court of Appeal [1994] I.C.R. 97 I do not consider that action "preventing or deterring" someone from being a member of a trade union or penalising him for doing so is limited to action taken in respect of his status as a member - the fact that he has or wants to have a union membership card. I may include action to prevent or deter him from, or action penalising him for, exercising his rights as a member of a trade union. The exercise of such rights is not necessarily include in the phrase "taking part in the activities" of a trade union, words more apt to cover such activities as attending union meetings or acting as an official of the union."