In this programme we go undercover into the world of the mule, discovering how children as young as 13 are being groomed to hand over their bank account details to criminals. We reveal that some of the recruiters, known as herders, are also teenagers. The accounts are then used to launder the proceeds of crime.

Latest figures show that the number of accounts belonging to under 21's being used by money mules has doubled since 2016. Money mules and herders face a 14 year prison sentence if caught.

Presenter: Paul Lewis