"It should be noted …..that the [employee] Applicant was highly aware of the [employers'] Respondents' attitude towards being under the influence of drugs, indeed …….it was drummed into all its employees repeatedly and in many different ways. The Tribunal considered the prudence of [the employee's] behaviour. She was concerned about the middle of July as to the potential effects of her boyfriend's smoking cannabis and yet she did not report that to a member of management until 6 August and that was after the date had been fixed for her screening to take place on 12 August. At the end of the day the issues were very finely balanced. The Tribunal is encouraged by the decision Haden " [and by that the Tribunal meant Haddon -v- Van den Bergh we have no doubt ] "not to shrink from substituting its own judgment for that of the employer when it is satisfied that the employers judgment was in all the circumstances not a reasonable one. The Tribunal asked itself would we have done and then went on to test its view by asking whether what we would have done accords with what our industrial experience tells us that a reasonable employer would have done."
"51. It was also made clear in Iceland Frozen Foods Ltd v Jones[1983] ICR 17 at 24-25 that the members of the tribunal must not simply consider whether they personally think that the dismissal is fair and they must not substitute their decision as to what was the right course to adopt for that of the employer. Their proper function is to determine whether the decision to dismiss the employee fell within the band of reasonable responses 'which a reasonable employer might have adopted'. 53. In one sense it is true that, if the application of that approach leads the members of the tribunal to conclude that the dismissal was unfair, they are in effect substituting their judgment for that of the employer. But that process must always be conducted by reference to the objective standards of the hypothetical reasonable employer which are imported by the statutory references to 'reasonably or unreasonably' and not by reference to their own subjective views of what they would in fact have done as an employer in the same circumstances. In other words, although the members of the tribunal can substitute their decision for that of the employer, that decision must not be reached by a process of substituting themselves for the employer and forming an opinion of what they would have done had they been the employer, which they were not."
"The Tribunal asked itself [what] would we have done and then went on to test its view by asking whether what we would have done accords with what our industrial experience tells us that a reasonable employer would have done."