A bit of googling turned up this:
"Kendal, Burt: The one that got away" . The book I read was a Swedish translation from this one (one of the three languages it has been translated into obviously

)!
I suspect the author have had access to the original manuscript, I remember references in the book where he pointed out that the original text had been altered by the nazi propaganda machine (among other things, the ethnicity of the members of the British police was of the utmost importance...).
Magnus