"15 The issue in this case is whether the respondent was obliged to calculate a week's pay for sick pay purposes to take into account the claimant's average weekly pay prior to her suspension in accordance with section 221(3), (that is a reference to that section of theEmployment Rights Act 1996 which deals with the calculation of a week's pay for the purposes of various statutory entitlements under that Act) or whether the respondent was obliged only to base its calculation on the 15 hour minimum as referred to in the claimant's contract of employment."
"(1) Interpretation is the ascertainment of the meaning which document could convey to a reasonable person having all the background knowledge which would reasonably have been available to the parties in the situation in which they were at the time of the contract. (2) The background was famously referred to by Lord Wilberforce as the 'matrix of fact', but this phrase is, if anything, an understated description of what the background may include. Subject to the requirement that it should have been reasonably available to the parties and to the exception to be mentioned next, it includes absolutely anything which would have affected the way in which the language of the document would have been understood by a reasonable man."
"18 …. in particular pages 7 and 9. These provide that there was a guaranteed minimum of 15 hours. The normal working week is 15 hours but the normal working hours are "as agreed". "
"22 The contractual normal working week was, therefore, 15 hours, even if the hours normally worked by the claimant had over time become more than 30. There was no contractual variation whether express or implied by conduct."
"Your normal working week is 15 hours, but could be significantly more. Your normal working hours are as agreed between you and the Home Services Manager."
"…I think that the Court of Appeal pushed the rule about the construction of documents too far. It applies in cases in which the parties intend all the terms of their contract (apart from any implied by law) to be contained in a document or documents. On the other hand, it does not apply when the intention of the parties objectively ascertained, has to be gathered partly from documents but also from oral exchanges and conduct. In the latter case, the terms of the contract are a question of fact. And of course the question of whether the parties intended a document or documents to be the exclusive record of the terms of their agreement is also a question of fact."
"…. 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."