"In April 2008 the Respondent proposed introducing a new individual performance management (IPM) system. The Claimant submitted an internal grievance on16 December 2008 , alleging that the decision to implement the IPM with effect1 April 2008 amounted to breach of the implied mutual duty of trust of confidence which must subsist in any employment relationship. He subsequently communicated his feelings about the system to other staff at the Respondent."
"...where, on hearing an employee's application for interim relief, it appears to the tribunal that it is likely that on determining the complaint to which the application relates the tribunal will find - (a) that the reason (or if more than one the principal reason) for the dismissal is one of those specified in section... 103A."
"We consider that the Tribunal is required to be satisfied (of more than reasonable grounds) before it can appear 'that it is likely' that a Tribunal will find that a complainant was unfairly dismissed for one of the stated reasons. On the other hand we are not persuaded that there is a dichotomy between 'probable' and 'likely' as expressed by the chairman of the Industrial Tribunal. We find it difficult to envisage something which is likely but improbable or probable but unlikely, and we observe that the Shorter Oxford English Dictionary definition does define 'likely' as 'probable'. Nor do we think that it is right in a case of this kind to ask whether the applicant has proved his case on the balance of probabilities in the sense that he has established a 51% probability of succeeding in his application, as has as one stage been contended before us. Nor do we find Mr Hand's alternative suggestion of a real possibility of success to be a satisfactory approach. This again can have different shades of emphasis. It seems to us that the section requires that the employee should establish more clearly that he is likely to succeed than that phrase is capable of suggesting on one meaning. On the other hand it is clear that the Tribunal does not have to be satisfied that the applicant will succeed at the trial. It may be undesirable to find a single synonym for the word 'likely' but equally, we think it is wrong to assess the degree of proof which has to be established in terms of a percentage as we have been invited to do. We think that the right approach is expressed in a colloquial phrase suggested by Mr White. The Industrial Tribunal should ask themselves whether the applicant has established that he has a 'pretty good' chance of succeeding in the final application to the Tribunal."
"Although the chairman of the Industrial Tribunal expressed the burden of proof differently from the way which we have done we do not consider that there is any real difference of emphasis. He thought that 'likely' meant more than 'probable' and he regarded 'probable' as being '51% or more'. Accordingly we are not satisfied that he erred in law in his interpretation of the section."