National Crime Agency

Rob Jones, of the National Crime Agency, said agency said paeodphiles like David Wilson would not have been brought to justice without evidence from Facebook.

David Wilson, 36, from Norfolk, has been jailed for 96 sex abuse offences against 52 boys aged between four and 14.

A businessman has surrendered almost £10 million worth of properties, cash and land after links to "organised crime groups" were uncovered.