Kenyon Confronts: Gone to the Dogs was broadcast on 6 December, 2001 on BBC One

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Paul Kenyon reveals the dark side of greyhound racing and exposes a world of race fixing and dog doping.

Kenyon buys his own dog and, after learning how to pass himself off as an owner and trainer, gains access to the murkier side of the sport.

He also discovers a mass grave for dogs - which helps to explain what happens to some of the 10,000 dogs that retire from racing each year.

During the programme Kenyon takes a master class in drugging dogs, meets a trainer fixing races and goes on a midnight dig at the greyhounds' graveyard.