Officer offered details of operation by HMS Trafalgar
Submariner Edward Devenney pleads guilty to collecting top secret Royal Navy codes and seeking a covert relationship with a foreign power.
Devenney offered details of an operation by HMS Trafalgar and sailing dates of two nuclear submarines to men he believed were Russian spies.
Submariner jailed over offer to pass on British secrets
A submariner has been jailed for eight years for trying to disclose the secret movements of British nuclear submarines to "Russian spies".
Submariner admits collecting top secret naval codes
Submariner Edward Devenney has admitted collecting top secret naval codes before meeting two men he believed were Russian spies