Okla. Stat. tit. 19, § 19-215.37K: Costs and expenses of investigation, prosecution or

defense of county action - Claims - Audits.

Payment by the county to the office of the district attorney for

the costs and necessary expenses of investigation, prosecution or

defense of any action, actual or contemplated on behalf of said

county, called for by Section 215.4 of Title 19 of the Oklahoma

Statutes, shall be made upon certification of the amount of such

expense by the district attorney by the filing of a regular purchase

order with the county commissioners for payment out of their account

for general government operation, or other account, as may be

appropriate. Such claim shall be approved and paid forthwith

whether or not encumbered in advance. An audit as to procedure and

accounting of the process shall be made by the State Auditor and

Inspector as a part of the regular county audit, the costs of which

shall be part of the costs of regular county audit performed by such

office.