The group consists of decoys who pose as underage children and take care to gather evidence on the offender - this evidence is passed to the police and then the crown prosecution service - it has to be the offenders doing to ensure a charge and free from any suggestibility on the "child's" part, and the hunters, headed by the founder Dave and formerly also "Baz" - now at another team, who perform the citizens arrest and confront the offender.