Ian Fleming, later to win fame and fortune as the the creator of James Bond, was working in Naval intelligence in 1940. The codebreakers at Bletchley Park, working on the highly secret German Enigma traffic, were having difficulty breaking into the German Naval signals. It was suggested that directly obtaining German Naval code tables would be the the fastest method of making progress. In effect this meant capturing a German Naval unit with the code material intact. Fleming proposed a scheme to do just this:
For Your Eyes Only.
12 September 1940.
To: Director Naval Intelligence
From: Ian Fleming
I suggest we obtain the loot by the following means:
1. Obtain from Air Ministry an air-worthy German bomber.
2. Pick a tough crew of five, including a pilot, W/T operator and word-perfect German speaker. Dress them in German Air Force Uniform, add blood and bandages to suit.
3. Crash Plane in the Channel after making SOS to rescue service.
4. Once aboard rescue boat, shoot German crew, dump overboard, bring rescue boat back to English port.
In order to increase the chances of capturing an R or M [Räumboot – a small minesweeper; Minensuchboot – a large minesweeper] with its richer booty, the crash might be staged in mid-Channel. The Germans would presumably employ one of this type for the longer and more hazardous journey.
NB. Since attackers will be wearing enemy uniform, they will be liable to be shot as franc-tireurs if captured, and incident might be fruitful field for propaganda. Attackers’ story will therefore be that it was done for a lark by a group of young hot-heads who thought the war was too tame and wanted to have a go at the Germans. They had stolen the plane and equipment and had expected to get into trouble when they got back. This will prevent suspicions that party was after more valuable booty than a rescue boat.
TNA ADM 223/463
Although Operation Ruthless was approved it was never carried out, a Commando raid captured the required material in early 1941.