Ohio Rev. Code § 5505.34: Recovering erroneous payments.

If a person is paid any benefit or payment by the state highway patrol retirement system to which the person is not entitled, the benefit or payment shall be repaid to the retirement system by the person. If the person fails to make the repayment, the retirement system shall withhold the amount due from any benefit or payment due the person or the person's beneficiary or may collect the amount in any other manner provided by law.