• "This is the best expose of life as a British Undercover ever written. Joe Carter is a ‘friend of ours’. "

    Joe Pistone AKA Donnie Brasco, FBI’s most famous UC.
  • "Undercover plays out like the best type of British crime novel and it’s easy to believe that these are made up characters in a make believe plot – not because it doesn’t seem plausible, but because it moves with the speed and excitement of a piece of fiction... I breezed through Undercover in a single day, it was that gripping."

    Culture Fly
  • "a fascinating look at the darker side of British policing"

    Crime Review
  • "He writes candidly"

    Eastern Daily Press