'His information is often so precise that many people believe he is the unofficial historian of the secret services. His books are peppered with deliberate clues to potential front-page stories' (The Sunday Times)
MI5: British Security Service Operations 1909-45
From its modest beginnings in 1909 to the end of the Second World war, MI5 was at the centre of the struggle against Britains enemies. Many of its exploits are here described for the first time - and some of MI5's true stories are as bizarre as any fiction conjured up by Le Carré or Deighton...
'Has demonstrably managed to open the usually vice-like jaws of many former Security Service staff'
Duncan Campbell, New Statesman
'The most accurate and informative history of the British Security Service yet published'
New Society
'Like a second Chapman Pincher, he has set the cat among MI5's pigeons'
The Times
'Will be an eye-opener'
The Observer