Okla. Stat. tit. 12, § 12-416
Prosecution
Whenever a witness summoned as mentioned in Section 4 of this
act fails to testify, and the facts are reported to either house,
the President of the Senate or Speaker of the House, as the case may
be, shall certify the fact under the seal of the Senate or House to
the Attorney General and district attorney of the county where the
witness failed to appear, whose duty it shall be to bring the matter
in the proper court by information or indictment for prosecution.