There is where we are going wrong, I show harry as Liason from bp to
OIC but the bp liason was stationed downstairs in the citadel I am
almost certain.
M

[edit] crypto guys I think lose interest after the cypher is broken usually
hinsley was acting as an analyst and that would place him at the OIC
as he wouldnt have had access to the d/f or p/r stuff at bp just the
signal intercepts.
M

No, Hinsley never even set foot in the Admiralty until after the Glorious sinking, and then they took him around and introduced him to everyone, and up to the fleet in Scapa. Afterwards, he was well respected, and regularly visited the Admiralty in London, but he worked out of Bletchley in Hut 4 (Naval Intelligence, not to be confused with Hut 8, Naval Cryptanalysis) until he was sent as a liason to Washington, D.C. in 1943. He returned in 1944, again back to Bletchley.

I am big enough to make an A$$ of my self but I am not to big
to say I am wrong, a detailed review of my resources veryfies all
of what you say that I have reference to.
I seem to have been under a wrong impression
of the liason arrangements and have obviously misinterpreted a few
facts, I would love nothing more than to be able to say this is the
first time but sadly I have made mistakes before.
M

Meh. We *ALL* make mistakes and talk out of our sphinctoral orifices at some point. Like I said, I used to be in the signals intelligence business, so the history of it has been a bit of a hobby (my wife would probably say 'obsession'). There was many a night I sat on my position listening to a receiver in each ear*, remembering stories I had read in David Kahn's book "The Codebreakers". That book was the one that got me interested in signals intelligence.

Plus, WWII was the 'Golden Age' of SIGINT, with tons of material now declassified and available to read (even, in some cases, the actual decrypts). There is some stuff from the Cold War (check the NSA website for some interesting material related to the Korean War, the Cuban Missile Crisis, Gulf of Tonkin incident, and the USS Liberty incident. Here is the page: http://www.nsa.gov/public/publi00003.cfm).



*You have to intercept both sides of a conversation, and often they would be on different frequencies to try and befuddle those intercepting them, hence the need for two receivers. Usually, if you didn't have a target up you would search with one receiver, and listen to a shortwave station with the other one. There was a rock and roll station out of Saipan that was a particular favorite.