Channel 4 Dispatches goes undercover to expose the way the ultra Orthodox community in London has for decades been dealing with child molesters.

In a year-long investigation, other victims of child abuse from this closed community express their anger about the lack of justice caused by their leaders' misguided approach to dealing with the issue.

In some cases those brave enough to complain to the police about their abusers have even been harassed, spat at and ostracised by other community members.

This Channel 4 Dispatches special report also reveals that an alleged child abuser was allowed to continue working with children, despite complaints from his victim.

And other victims, frustrated by their inability to bring child abusers to justice, tell Dispatches they've threatened and attacked those they believe to be paedophiles.