A London martial arts instructor has been jailed for child sexual abuse after police believe he may have other victims. Anthony Swanson, who ran lessons from a south London church hall, was found guilty of grooming a girl who attended his classes. The court heard how he targeted young students, using his position to gain their trust. Authorities are now appealing for further victims, urging anyone with information to come forward. Swanson's case highlights ongoing concerns about abuse within martial arts communities. The police emphasize that the investigation is ongoing, and they are working to identify any additional victims. This case has sparked renewed calls for stricter oversight of such groups.