offenders. [Civil Service Rules, XII, 3, 7.] SECTION  725 . Payment of Salary of Person in Classified Service.  — Payment of money on account of salary to any Officer or employee in the classified service shall not be made prior to the receipt by the disbursing officer or notification from the chief of  the Bureau or Office that the appointment or employment of such officer or employee has been duly authorized as provided by the Civil Service Law and rules. [Civil Service Rules, X, 2.] SECTION  726 . Payment of Person Employed Contrary to Law — Liability of Chief of Office.  — No person employed in the classified service contrary to law or in violation of the civil service rules shall be entitled to receive pay from the Government; but the  chief of the Bureau or Office responsible for such unlawful employment shall be personally liable for the pay that would have accrued had the employment been lawful, and the disbursing officer shall make payment to the employee of such amount from the salary  of the officer so liable. [1698-5.] SECTION  727 . Liability of Disbursing Officer for Pay of Such Person. — When the Director of Civil Service finds that any person is holding a position in the classified service in violation of law, he shall certify such fact to the Insular Auditor and to th e disbursing officer through whom the payment of salary or wages to such person is by law required to be made. If the Insular Auditor finds that a disbursing officer has paid or permitted to be paid salary or wages to any person illegally holding a classif ied position, the whole amount paid shall be disallowed and the disbursing officer shall not receive credit for the same unless the Insular Auditor shall find that the chief of the Bureau or Office is responsible, as above provided, for the payment of such  person and that such payment is not due to the failure of the disbursing officer to obtain the evidence required in section seven hundred and twenty-five hereof. In case the disbursing officer is not responsible for the illegal payment, he shall be direct ed to withhold from the salary of the chief of the Bureau or Office responsible for the illegal employment an amount equal to that disallowed by the Insular Auditor. [1698-5 ( a ).] SECTION  728 . Opinion of Director of Civil Service on Controverted Questions Related to Service .— A disbursing officer, the head of any Department, Copyright 2012 CD Technologies Asia, Inc. and Accesslaw, Inc. Philippine Law Encyclopedia 2011 224