“… the reasons need not be elaborate or lengthy but they must be intelligible and deal with the substantial points which have been raised. Having read the reasons the parties should be able to understand why the decision had been reached.”
“… will depend on the nature of the issue and the evidence. Often the FTT will have been provided with little or no relevant evidence, but it is still required to explain how and why it reached its own determination. It must avoid the appearance of simply picking figures out of the air, but it should be able to achieve that without going into any greater detail than the subject matter requires.”