Liability of state in the Kingdom of Thailand law, the previous one that state had no liability from act itself after that it has been extended the limit of liabilities in any laws. Constitution of The Kingdom of Thailand B.E. 2540 has been extended liabilities of state by regulations that state must be liable in compensation in any cases such as to give effort and victim in criminal case has the right to get necessary and properly compensation from state. The victim in criminal case has been imprisoned during judiciary that final judgment is who is not offender or defendant acts not fault. They have been gotten the right compensation and properly expense covered the right lost from that operation duties accordance with the conditions and law enforcement method. Beside the regulations still regulate state officials must be liable for tort acts of state operation and liability for loss from fault or disability of state official or operation. In case of the staff is tor acts who is not willful indifference or gross negligence of Tortious Liability of Officials Act B.E.2539 from now on.