Had a book about Brixmis a while back. Fascinating read and very James Bond what with cars with interchangeable rear light patterns etc. Might have to see if it's in the cellar for another quick flick actually.
For the info of anyone interested, I assume you are referring to this book, by Tony Geraghty
Brixmis: The Untold Exploits of Britain's Most Daring Cold War Spy Mission: Amazon.co.uk: Tony Geraghty: Books
A thoroughly fascinating read!
Bit anorak I know but there is a thread over at TankNet that has some VERY detailed specifics about what was seen (or what they let us see), when and how.
Can anyone be a bit more specific about which forum and thread this refers too? I can't locate it on the Tanknet site.