It is strictly unnecessary that I consider the question whether, if the insurer had not been entitled to avoid the policy, the provisions of s. 28(3) would, if the necessary foundation had been laid in evidence, have entitled the insurer to reduce its liability to Mr. and Mrs. Matthews. That question has, however, been fully argued and I consider it appropriate that I indicate my views in relation to it. I would reject the submission made on behalf of the insurer that it would, in the postulated circumstances, have been entitled to negate all liability on the ground that, if it had known of the previous claims history, it would not have issued a policy at all. Section 28(3) does not offer an indirect means of avoiding a policy. Its starting point is the existence of the policy and the insurer's entrenched liability under it. Its operation, in a case to which it applies, is to reduce the amount of that liability. That being so, any reduction in the amount of the insurer's liability would, in the postulated circumstances, have fallen to be calculated on the basis of the position which would have existed if the insurer had issued a policy after full disclosure of the claims history. That is to say, the insurer's liability under the policy would be reduced by any additional amount or amounts of premium it would have charged if there had been full disclosure. If the evidence established that, in such circumstances, the additional amount of premium which would have been charged would have exceeded the amount of the claim, the amount of the insurer's liability would be reduced to nil. In that regard, I respectfully dissent from the view of the learned trial judge that s. 28(3) can never operate so as to reduce the amount of the insurer's liability to a nil amount in the circumstances stances of a particular case.