"To put it another way, is she employed by the day, or by the week, or by the term, or for some other period? Here again, it seems to us that the Respondents face insuperable difficulties. In our view it would offend common sense to regard the Applicant as being employed under a series of short-term contracts. That would not reflect the reality of her dealings with the Respondents over many years. Moreover, there is no evidential basis on which we could properly determine the moment when one contract came to an end and another began." they went on, and added towards the end of that same paragraph: "
"I think that it was open to the Industrial Tribunal to find as a fact that the parties did not intend the letters to be the sole record of their agreement but intended that it should be contained partly in the letters, partly in oral exchanges at the interviews or elsewhere and partly left to evolve by conduct as time went on. This would not be untypical of agreements by which people are engaged to do work, whether as employees or otherwise. Although the Tribunal did not expressly state this to be their finding their whole approach to the evidence was consistent only with their having come to such a conclusion. In my view they were entitled to do so."