Raised on the streets of a 'tough Manchester council estate' Shay Doyle could easily have turned to a life of crime. Instead, he ended up playing the part of a gangster and helped bring down some of Manchester's most feared underworld figures.
The soldier-turned-undercover policeman risked his life to infiltrate south Manchester's gangland. He was also on the frontline of some of the most high profile police operations in Greater Manchester history, including the Stepping Hill poisonings and the hunt for double cop killer Dale Cregan.
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