Three teenage boys were convicted for raping two girls in Fordingbridge.
The scheme is rolled out nationally after regional trials, which started in the Midlands.
Two teenage boys convicted of rape had initially been given non-custodial sentences but have since been handed a four year detention.
Eight arrests have been made as the National Crime Agency says it has identified 270 people linked to the abuse websites.
Three teenage boys convicted of rape should have been detained, the Court of Appeal hears.
The case has been referred to the Court of Appeal under the unduly lenient scheme.
A boy died in July when a coach carrying school children came off the road on Exmoor.
The sentencing of three boys who raped two girls in separate attacks is being reviewed.
The boys filmed themselves laughing and encouraging each other as they raped two girls in separate attacks.
