HC Deb 16 March 1927 vol 203 cc1987-8
20. Mr. ROBINSON

asked the First Lord of the Admiralty whether the short- wave wireless used by the Admiralty for long-distance communications is of such a nature that the messages cannot be intercepted by private individuals or operators in the service of other nations?

Mr. BRIDGEMAN

There is no secrecy in the methods of short-wave wireless telegraphy communication used by the Admiralty, except in so far as codes and cyphers are used. Messages as coded, or those in plain language, can be intercepted by anyone.