Court of Appeal Lord Denning MR held that the doctrine of fundamental breach did apply, and that Securicor was liable. He said if the breach was fundamental then the exclusion clause would be invalid, following his decision in ''
Harbutt's "Plasticine" Ltd v Wayne Tank and Pump Co Ltd''. He said the following.
Shaw and
Waller LJJ concurred. Securicor appealed.
House of Lords The
House of Lords overturned the
Court of Appeal and held that Securicor's exclusion clause was effective and exempt it from liability for damage.
Lord Diplock held that the clause’s effectiveness was a question of construction of the contract, and that it did cover the damage. He noted ‘the reports are full of cases in which what would appear to be very strained constructions have been placed upon exclusion clauses’ though the need should have gone since the passage of the
Unfair Contract Terms Act 1977.
Lord Wilberforce, writing for the Court, overturned Denning and found that the exclusion clause could be relied upon. Wilberforce explicitly rejected Denning's application of the doctrine of fundamental breach and opted for a "rule of construction" approach. Exemption clauses are to be interpreted the same as any other term regardless of whether a breach has occurred. The scope of the exclusion is determined by examining the construction of the contract. On the facts, Wilberforce found that the exclusion clause precluded all liability even when harm was caused intentionally. He went out of his way to disapprove the doctrine of fundamental breach of contract. ==Significance==