Okla. Stat. tit. 19, § 19-340: Investigation of officers - Allowance of compensation,

etc.

The board of county commissioners is hereby vested with full

power to inquire into and investigate the accounts, disbursements,

bills and expenses of any county, district, or township officer, and

to that end may subpoena witnesses and in case any witness fails or

refuses to obey any lawful order of the board of county

commissioners he shall be deemed guilty of a misdemeanor, but in no

case shall the board of county commissioners allow any compensation,

fee, salary, bills or expenses to any officer or person except when

expressly allowed by law.