asked the Parliamentary Secretary to the Admiralty what steps are being taken to equip naval air craft and surface craft with detection devices suitable for use against sub marines fitted with fast under-water batteries and snorts.

As far as I can tell, the development of anti-submarine detecting devices and weapons for both naval aircraft and surface ships is fully keeping pace with developments in the submarine's power and underwater evasion and attack. It would not be in the public interest to disclose details of what is being done in this field.

I quite agree with the Parliamentary Secretary, but will he give me an assurance that this position will be continuously watched, because the balance is likely to swing one way or the other?

The highest priority is being given to this work.