“4.7 In the majority of cases it is the life expectancy of the deceased, and hence the period for which he or she would have continued to provide benefits to any dependants, which will govern the multiplier. It was in this context that the ‘date of death’ rule was adopted, on the basis that ‘everything that might have happened to the deceased after that date remains uncertain’. 4.8 It is true that where the multiplier is controlled by the life expectancy of the deceased, the only information which will usually be relevant to that calculation is that which was known about the deceased at the time of death. On the other hand, it is possible to imagine facts on which matters emerging as certain after the deceased’s death do affect the period for which it is estimated that he or she would have continued to provide benefits. For example, the deceased might have suffered from a life-shortening medical condition which could not be treated in his or her lifetime. If by the time of trial it is known that, within a year of his death, a treatment for the condition had been developed, this would inevitably affect the accuracy of any multiplier calculated at the date of death. Thus, even in cases where the deceased’s life expectancy controls the multiplier, we do not agree with Lord Fraser’s assertion that the multiplier should inevitably be selected ‘once and for all’ as at the date of death.”
“I do not suggest that the judge should be a slave to the tables. There may well be special factors in particular cases. But the tables should now be regarded as the starting-point, rather than a check. A judge should be slow to depart from the relevant actuarial multiplier on impressionistic grounds, or by reference to ‘a spread of multipliers in comparable cases’ especially when the multipliers were fixed before actuarial tables were widely used.”