The Central Bureau of Investigation on Saturday formally took over the probe into the sensational Pollachi sexual abuse and blackmail case.
The central agency, which took over the case on a recommendation from the State government, has registered two FIRs in the case.
While one FIR is based on the complaint of a college girl who was assaulted in a car by four youth, the other FIR was registered on the complaint of her brother that he was beaten up by a gang who intervened on behalf of the main accused in the case.
The case relates to the alleged enticing of several young women and filming them in a compromising position for the purpose of blackmail. Investigation in the case, which was handled by the local police, was transferred to the CB-CID and subsequently to the CBI. Recently, the CB-CID included rape as one of the offences against the accused.
