Introducing the investigation

Part one of a five-part special investigation into county lines drug dealing, running in audio, video, print and digital from The Times and The Sunday Times.

Today we reveal how police took down the family controlling the drug trade in one British city, creating a power vacuum that was filled by a new breed of violent, criminal operation - county lines.

The Sunday Times' northern editor David Collins is given unprecedented access to North Yorkshire Police as they fight back against the drug gangs. 

This podcast was brought to you thanks to the support of readers of The Times and The Sunday Times. Subscribe today: http://thetimes.com/thestory

Read more: Exposed: how drug gangs deal without fear as the law can’t keep up | I was a county lines drug runner. I tried to quit, then I was stabbed

Watch: School-age kingpins: why children now hold the key to county lines

Host: David Collins

Producers: Kate Lamble, Taryn Siegel

Executive producers: Tim Walklate, Dan Box

We want to hear from you - email: thestory@thetimes.com

Photo: Getty Images.

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