My Lords, much of what I intended to say has already been said, but I shall give an illustration from the classic case of Duncan v Cammell Laird, which involved the sinking of a submarine in Liverpool Bay while undergoing trials on its maiden voyage in 1939. Ninety-nine men were lost. Their widows, mostly from Merseyside, sued the shipbuilders. The Admiralty, in the middle of the Second World War, declined to allow the production of the designs of the submarine on grounds of national security. Contemporary evidence, which has been seen since, suggests that its true motive was to restrict the power of citizens to sue government departments, particularly when they were financed by trade unions. In fact, the claimants lost.
Today, other means, which have been referred to in the course of this debate, might have been used to assist those claimants in the projection of their cases, but suppose this legalisation had been in force and that the Government had applied for a secret hearing. Can your Lordships imagine the uproar in Liverpool if the Admiralty had been able to produce not merely the designs but its expert evidence and argument, and to explain those designs to the judge in secret, without challenge and without anything being heard on the other side? Patently, it would have been a miscarriage of justice.
Open justice, very simply, means first that a claimant should know the case made against him. That principle derives from what was said more than two and a half millennia ago by Aeschylus in the “Oresteia”.
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