Former detective Dennis Martyn spent years working as an undercover cop. Running with criminal gangs, he’d bust drug dealers through top secret operations. It was a deadly world, and one that left him with a contract on his head. In this episode, he joins Gary Jubelin to talk about the undercover world and how he helped catch child sex offenders.

If you want to hear more about Task Force Argos - listen to our interview with Jon Rouse here.

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Unmasking predators: Dennis Martyn Pt.1