"3.4.10 The Third Stage hearing took place on26 May 2008 , when the Claimant was given the Third Stage warning. That has been the difficulty. We now know that it had been agreed that the 56 days with stress and depression would not be counted. That meant that the Claimant could only properly be given a Third Stage warning on26 May 2008 if he had triggered two periods of absence within twelve months of the Second Review period. In fact, the second of those individual days,9 May 2008 , was slightly outside that period. No-one realised when the Third Stage warning was given that it should not be counted – not the person giving the warning, or the Claimant, or his Union Representative. This is because the position was somewhat obscured, partly by discussions about the 56 days off, and partly by the fact that the Second Stage warning itself had been outside of the usual ten days as a result of the Claimant having insisted on being represented by one particular union Representative who had been unavailable for a number of weeks. It is clear that everyone 'took their eye off the ball' when the Third Stage warning was given. However it was given and there was no appeal against it."
"5.1 UnderSection 98 of the Employment Rights Act 1996 it is for the employer to show the principal reason for dismissal. The potentially fair reason in this case could be capability or some other substantial reason. 5.2 If the employer can show a potentially fair reason we have to decide whether dismissal is in fact fair in accordance with the substantial merits of the case under Section 98(4). In accordance with the guidance in BHS v Burchell this means that we may consider such matters as whether, at the time of dismissal the Respondent believed that the claimant was guilty of the misconduct alleged or that there was some other reason which justified dismissal, and if so whether it had reasonable grounds for that belief, and if so at the time it formed that belief, had it carried out as much investigation into the matter as was reasonable in the circumstances. That in turn can involve determining whether the process carried out by the Respondent fell within the range of reasonable investigative procedures open to an employer in such circumstances. 5.3 After considering the Burchell test the final question is whether the decision to (summarily) dismiss the Claimant was within the range of reasonable responses open to an employer in the circumstances. 5.4 We have been referred to Devis v Atkins , heard in the Court of Appeal in 1977 which quoted Lord Denning's Judgment in Abernethy which clarified that the reason for the dismissal must be a reason is [sic] existence at the time when the employee was given notice, and be the principal reason which operates on the employer's mind at the time the decision to dismiss is made. Devis v Atkins also disapproves an earlier case Da Costa v Optolis , and held that evidence of irregularities unknown to the employer at the time of the dismissal have no bearing on the fairness of the dismissal. This is because things the employer does not know cannot affect the question of whether the employer acted reasonably in concluding that the reason it had was sufficient to justify dismissal. 5.5 There is other authority to the effect that a genuine but mistaken belief can be grounds for a fair dismissal. Bouchaala v Trust House Forte Hotels Ltd , heard in 1980, found that a genuine but mistaken belief that the employment of the Claimant, a Tunisian national, was in breach of immigration rules, was sufficient to justify dismissal, even though to continue the employment would not in fact have been such a breach."
"6. The question of whether this particular dismissal was fair or not, has not been easy to answer, and has taken us some time. 6.1 We are satisfied that the principal reason for the dismissal was the number of the Claimant's absences, and not the assertion of any statutory right to be paid overtime. We think the correct categorisation of a dismissal for such absences is 'some other substantial reason'. It was not the Claimant's ill health in itself which caused the dismissal, but the fact that he could not meet the employer's attendance procedure. In similar cases concerning the Post Office, which has a similar strict procedure, the Court of Appeal has concluded that some other 'substantial reason' was the appropriate categorisation. 6.2 We are satisfied that this Respondent, at the time it decided to dismiss, believed that the Claimant had, during the currency of a Stage Three warning, incurred two further periods of absence. Therefore under the procedure, dismissal was an appropriate sanction. Whilst it is clear that the Claimant ought not to have been given the Stage Three warning, we nevertheless find that the principal reason which operated on Mr Smith's mind was that the Claimant had received that warning and then had two subsequence absences. That was the set of facts known to employer, or belief held by him, which caused Mr Smith to dismiss the employee. Given that on the day that Mr Smith decided to dismiss he did not know or appreciate that there was an irregularity, and no-one brought it to his attention, we conclude that it should be ignored when determining the fairness of his decision. 6.3 Mr Smith clearly held a reasonable belief at the time the decision was taken that the Claimant had hit the point of the procedure where he should be dismissed. It was a genuinely held belief and, albeit that it was a mistaken belief, we still conclude that it was fair for him to dismiss for 'some other substantial reason'. 6.4 This finding seems harsh. We have considerable sympathy with an employee who is dismissed in these circumstances; which he clearly thinks is unfair. However Devis v Atkins itself states that the test directs our attention to the conduct of the employer, and not to whether the employee in fact suffered any injustice. Given that the Claimant did not appeal the Stage Three warning, he is in a similar position to a person dismissed for misconduct, who argues at a dismissal hearing that he should not have been given an earlier written warning for misconduct a year ago. We do not routinely expect the employer to reopen the earlier disciplinary procedures. The Claimant had been given the warning, mistakenly, but in good faith, which was not appealed. Moreover the Respondent was not aware of its error at the time the decision to dismiss was taken. We are satisfied from what the employer has told us, and from what it has done since, that had the Claimant raised the error in the dismissal hearing, he probably would not have been dismissed. In the absence of it being raised, we do not conclude that it would have been reasonable to expect the employer to trawl back through its records just in case there had been an earlier mistake. There was no breach of the procedure leading to the dismissal. Therefore we conclude, applying the tests in Sections 98 and 98A(2) of the Act, that the dismissal was fair."
"In our judgment, where the conduct relied on by the employer is the employee's refusal to obey an instruction, the question as to whether that instruction is lawful ... is a relevant but not decisive question when considering the reasonableness of the dismissal under section 98(4)..."
"There is, however, an important qualification to that general rule. The Tribunal is entitled to satisfy itself that that final warning was issued in good faith and that there were prima facie grounds for following the procedure of a final warning. That appears from paragraph 6 of the Stein case. There is an important passage in paragraph 8 where Lord McDonald said: 'Certainly if there was anything to suggest that the warning had been issued for an oblique motive or if it was manifestly inappropriate that is a matter which a Tribunal could take into account.' If a Tribunal is entitled to take into account the matter whether a final warning has been given in 'manifestly inappropriate' circumstances or without prima facie grounds, the Tribunal must consider the factual background to and the circumstances in which the final warning was given, including the employers' own procedures for the issuing of oral warnings, written warnings and final warnings."