If you've ever watched Line of Duty and wondered how realistic AC-12 really is, then this is the episode for you. For the first time, Neil takes us behind the scenes of his four years working in anti-corruption units - and reveals the impact it had on his popularity among his fellow officers.

Andy and Neil also examine why there is such a history of corruption within the police, and Neil assesses whether policing is more honest now than when he started his career 35 years ago.

Later, they discuss whether the methods used in TV dramas such as Line of Duty are an accurate representation of how detectives root out corrupt officers from their ranks in real life - and Neil and Andy reveal their all-time favourite cop shows.

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