Paedophile Hunters: The Rise Of The Vigilantes - How can I stream it and what channel is it on?
A new documentary investigating the rise of vigilante groups targeting suspected paedophiles will be released this weekend and features Sunderland-based Guardians of the North.
What Channel is it on? BBC Three.
When can I watch it? It's available from 10am on Sunday, January 27.
How can I watch it? BBC Three is available online through computers, laptops and mobile phones - or your telly! It's also available to watch through BBC iPlayer.
What's it all about? With access to two UK-based paedophile hunting groups, Guardians of the North, from Sunderland, and Predator Exposure, in Leeds, journalist Livvy Haydock observes their methods and stings to discover first-hand whether they are helping or hindering the police in their attempts to administer justice.
OK, so what's going on? While some of the evidence that the hunters gather is used in some cases to charge suspects, the police are concerned about people being wrongly targeted and hurt. As well as some groups naming and shaming people online before police can assess any evidence.
What will I find out? By taking the law into their own hands, are the hunters actually making potential convictions more difficult for the police? Or are they helping capture predators who might otherwise slip through the net?