Angels and outlaws - the story of the biker gangs: Trailer

Biker gangs like the Hell's Angels first established themselves in the USA, but have since spread around the world, becoming global movements. Members see themselves as outcasts from society, and those who belong to these so-called "one per center" motorcycle clubs have their own strict rules and rituals. Some members are attracted by a love of bikes, and the sense of brotherhood being in a motorcycle gang brings. But police say some "one per center" gangs are criminal enterprises, responsible for mayhem and even murder.

For Gangster Presents, Angels and Outlaws, Livvy Haydock explores the world of biker gangs.

Series producer: Fergus Hewison Technical producer: Richard Hannaford. Producer: Patrick Kiteley. Journalism assistants: Tim Fernley and Tom Dunster Commissioning producers: Sam Proffitt and Becky Padington Commissioning Executive: Louise Kattenhorn Commissioning Editor: Richard Maddock Editor and Executive producer: Clare Fordham.