Okla. Stat. tit. 21, § 358
It shall be unlawful for any person, firm, corporation, association or agency to make, present, or cause to be presented to any employee or officer of the State of Oklahoma, or to any department or agency thereof, any false, fictitious or fraudulent claim for payment of public funds upon or against the State of Oklahoma, or any department or agency thereof, knowing such claim to be false, fictitious or fraudulent.
Laws 1970, c. 151, § 1, emerg. eff. April 7, 1970.