HC Deb 15 May 1963 vol 677 c166W
Sir L. Ropner

asked the Civil Lord of the Admiralty on how many occasions during the last five years ships of the Royal Navy have been damaged by sabotage; what has been the total cost of repairing such damage; and on how many occasions offenders have been convicted

Mr. Hay

Over the past five years, there have been 44 cases of damage suspected to be deliberate, but hardly any of these could properly be described as sabotage, involving deliberate damage from political or subversive motives. The number of offenders convicted was 22.

I regret that the total cost of repairs is not recorded separately from other work. The damage in the great majority of cases was minor and easily repairable.