Ohio Rev. Code § 5505.201
Except for service credit transferred under section 5505.41 of the Revised Code, a member of the state highway patrol retirement system shall, in computing years of active service in the highway patrol under sections 5505.16, 5505.17, and 5505.18 of the Revised Code, be given full credit for time served as a police officer or firefighter covered under Chapter 742. and former Chapters 521. and 541. of the Revised Code, provided such member pays to the state highway patrol retirement system the amount received by the member under division (I) of former section 521.11, division (I) of former section 741.18, division (I) of former section 741.49, or division (G) of section 742.37 of the Revised Code, with compound interest thereon at a rate to be determined by the state highway patrol retirement board from the date of such receipt to the date of such deposit. A member may choose to purchase only part of such credit in any one payment, subject to board rules.
Upon certification by the state highway patrol retirement board to the board of trustees of the Ohio police and fire pension fund of such payment by the member, the Ohio police and fire pension fund shall pay from the appropriate employers' contribution fund under section 742.59 of the Revised Code to the state highway patrol retirement system an amount equal to the payment of the member.
R.C. §5505.201