DECISION
28 In my opinion, Mr. and Mrs. Taylor cannot complain that the Senior Member took into account matters outside the six agreed facts. Where there is to be a decision of a separate or preliminary question, it is in my opinion highly desirable that the basis on which this is to be decided is clearly set out; and it is unsatisfactory that a tribunal deciding such a question should rely on facts outside agreed facts without any ruling as to what facts are to be considered and as to how any conflicts in evidence are to be resolved. However, in the present case, all parties participated and acquiesced in the procedure taken.
29 I accept Mr. Donaldson's submission that the reasoning process of the Senior Member, from a prima facie view that personal participation was not required to a view that it was, was not entirely satisfactory, inter alia in that he relied on post-contract documents without explaining how he did so. However, in my opinion the conclusion, that Mr. Chapman's personal participation was required, was clearly correct. Work under the contract could only be done by or under the supervision of the licensee Mr. Chapman, or an employee of his who held a supervision certificate: see HBA ss.12, 13, 16. The evidence made it clear that there was no employee with a supervision certificate. Under cl.15 of the contract, the contract could not be assigned by Mr. Chapman without Mr. and Mrs. Taylor's consent; and cl.15 only permitted Mr. Chapman to engage sub-contractors and others to do part of the work. The requirement of personal involvement by Mr. Chapman is confirmed by pre-contract circumstances, including the inspection by Mrs. Taylor by arrangement with Mr. Chapman of his other work. The post-contract correspondence, referred to by the Senior Member, contains admissions on behalf of Mr. and Mrs. Taylor confirmatory of these matters.
30 In my opinion, the Master erred in her statement of reasons in par.[30] of her judgment. It is not correct to say that a temporary injury is not sufficient to frustrate a contract of employment: it may or may not be, depending on whether it would make performance of the contract radically different from that promised. Even if one corrected the statement of principle by reading it as asserting that a temporary incapacity is not necessarily sufficient for frustration, this would highlight that there was a lack of reasons as to why the temporary incapacity in this case was not sufficient; and it would also confirm that in substance the Master was addressing a mixed question of fact and law.
31 The authoritative decision of Codelfa substantially adopts two alternative statements of the relevant test. First, there is that of Lord Radcliffe in Davis to the effect that there is frustration where the circumstances in which performance is called for would render performance radically different from that promised. Second, there is the statement of Lord Reid in the same case to the effect that the question is whether the contract is wide enough to apply to the new situation. In Codelfa, these were treated as being to similar effect.
32 Mr. Donaldson argued that the statement of Lord Reid is preferable, and that the question of construction is a pure question of law. In my opinion, at least in circumstances such as the present, the question whether the circumstances would render performance "radically different" from that promised does involve a substantial factual element; and in my opinion, the question posed by Lord Reid also does so, because in deciding whether a contract is "wide enough", one must take into account the relevant surrounding circumstances and their impact on this question. It could be argued that, if one had a precise and exhaustive statement of all the surrounding circumstances and all the factual inferences that were to be drawn (including inferences as to reasonable expectations), then one would be left with a pure question of law; and indeed, it would be argued that this would also remove the factual element from the question whether performance would be "radically different". One did not have such a statement in this case; and in my opinion it is unrealistic to expect that there could in cases such as the present be a precise and exhaustive statement of all surrounding circumstances and factual inferences, as an exercise distinct from that of reaching a conclusion, of mixed fact and law, in terms of either test.
33 Accordingly, in my opinion, to establish an error of law by the Senior Member, it was necessary to show that he applied a wrong principle of law. That could be shown either from what he said, or because the ultimate result, associated with the facts that he expressly or impliedly found, indicates that he must have applied the wrong principle of law.
34 In par.[20] of his decision, the Senior Member did not precisely reproduce either the test stated by Lord Radcliffe or that stated by Lord Reid; but he had referred to the relevant part of Lord Radcliffe's statement in par.[4] in setting out the submissions of Counsel. In my opinion, what was said by the Senior Member did not indicate that he applied the wrong principle, or amount to a deficiency of reasons. In my opinion also, the result was not such as to indicate that he applied a wrong principle.
35 The Senior Member did not refer to cl.6(l), and we were not referred to any submission about that provision made to him. In my opinion, cl.6(l) could apply to the temporary incapacity of a builder; but in my opinion it was clearly open to find that it did not apply so as to deal with the circumstance that the builder was in a coma, and remained in a coma for a period of over two weeks, with no indication over that period as to if or when he would ever regain capacity. In my opinion, the Senior Member determined that frustration occurred automatically at the beginning of May; and he was not shown to have committed any error of law in doing so.
36 For those reasons, in my opinion, Mr. Chapman's appeal should be allowed. There seems no reason why leave to appeal should not be granted to Vero, and Vero's appeal allowed. There may be a question as to Vero's costs.