" … an employment tribunal shall not consider a complaint under this section unless it is presented to the tribunal (a) before the end of three months beginning with the effective date of termination, or (b) within such further period as the tribunal consider reasonable in a case where it is satisfied that it was not reasonably practicable for the complaint to be presented before the end of that three months."
"7. Conclusion On balance – and it is one of those cases where matters are finely balanced – I allow the Tribunal to have jurisdiction to hear the case. I accept that the original error was made by the Claimant but that error was substantially compounded by the administrative delay in informing him of that error. Given that delay it was not reasonably practicable to bring the claim within the 3 month time limit."
"Looking at the matter first without reference to the authorities, I should have thought that the meaning of the expression concerned, in the context in which it is used, was fairly clear. The performance of an act, in this case the presentation of a complaint, is not reasonably practicable if there is some impediment which reasonably prevents, or interferes with, or inhibits, such performance. The impediment may be physical, for instance the illness of the complainant or a postal strike; or the impediment may be mental, namely, the state of mind of the complainant in the form of ignorance of, or mistaken belief with regard to, essential matters. Such states of mind can, however, only be regarded as impediments making it not reasonably practicable to present a complaint within the period of three months, if the ignorance on the one hand, or the mistaken belief on the other, is itself reasonable. Either state of mind will, further, not be reasonable if it arises from the fault of the complainant in not making such inquiries as he should reasonably in all the circumstances have made, or from the fault of his solicitors or other professional advisers in not giving him such information as they should reasonably in all the circumstances have given him. On this general view of the meaning of the expression under discussion, the present case is an example of a mistaken belief by an employee, reasonably held, constituting an impediment which prevented or inhibited him from presenting his complaint within the period of three months prescribed. With regard to ignorance operating as a similar impediment, I should have thought that, if in any particular case an employee was reasonably ignorant of either (a) his right to make a complaint of unfair dismissal at all, or (b) how to make it, or (c) that it was necessary for him to make it within a period of three months from the date of dismissal, an industrial tribunal could and should be satisfied that it was not reasonably practicable for his complaint to be presented within the period concerned. For this purpose I do not see any difference, provided always that the ignorance in each case is reasonable, between ignorance of (a) the existence of the right, or (b) the proper way to exercise it, or (c) the proper time within which to exercise it. In particular, so far as (c), the proper time within which to exercise the right, is concerned, I do not see how it can justly be said to be reasonably practicable for a person to comply with a time limit of which he is reasonably ignorant. While I do not, as I have said, see any difference in principle in the effect of reasonable ignorance as between the three cases to which I have referred, I do see a great deal of difference in practice in the ease or difficulty with which a finding that the relevant ignorance is reasonable may be made. Thus, where a person is reasonably ignorant of the existence of the right at all, he can hardly be found to have been acting unreasonably in not making inquiries as to how, and within what period, he should exercise it. By contrast, if he does know of the existence of the right, it may in many cases at least, though not necessarily all, be difficult for him to satisfy an industrial tribunal that he behaved reasonably in not making such inquiries. To that extent, therefore, it may, in general, be easier for a complainant to avail himself of the "escape clause" on the ground that he was reasonably ignorant of his having a right at all, than on the ground that, knowing of the right, he was reasonably ignorant of the method by which, or the time limit within which, he ought to exercise it."