"3. The tribunal has not heard any evidence. [It is a potentially misleading way of putting it because, of course, they had the evidence of the agreed bundle and the facts which were agreed]. It has heard copious argument from Mr Randall [counsel] and Mr Goodier [solicitor]. Mr Goodier also presented the tribunal with skeleton argument on behalf of the respondent. It has not really been necessary to hear the evidence because the relevant facts are common to both parties.
"6. It has been said on the applicant's behalf that that is not so. What the applicant was required to do in attending 15 minutes before the start of the shift was obligatory. This clause refers to something which is not obligatory. ...."
"7. That is something quite different it would appear to this situation where someone transfers from a day shift to a night shift and is obliged as part and parcel of his working on that night shift to attend 15 minutes before the official start of the shift.