According to the inquiry of China Travel Service. Com, you can investigate the legal responsibility of fraudsters: after being defrauded, if the parties call the police, the police can intervene in the case investigation. If fraud constitutes a crime, the fraudster can be investigated for criminal responsibility. If it does not constitute a crime, it shall be handled as a public security case and the fraudster shall be punished for public security management. Help the parties recover their losses: the public security organs will recover the illegal income of the fraudsters. If it belongs to the victim after recovery, the public security organ shall return it to the victim. If it cannot be returned in full, they will order the fraudster to pay compensation.