Okla. Stat. tit. 21, § 21-1265.6: Self incriminating testimony - Immunity from

prosecution.

No person shall be excused from attending and testifying or

producing any books, papers, or other documents before any court,

magistrate, referee or grand jury upon any investigation, proceeding

or trial, for or relating to or concerned with a violation of any

section of this act or attempt to commit such violation, upon the

ground or for the reason that the testimony or evidence, documentary

or otherwise, required of him by the state may tend to convict him

of a crime or to subject him to a penalty or forfeiture; but no

person shall be prosecuted or subjected to any penalty or forfeiture

for or on account of any transaction, matter or thing concerning

which he may so testify or produce evidence, documentary or

otherwise, and no testimony so given or produced shall be received

against him, upon any criminal investigation, proceeding or trial,

except upon a prosecution for perjury or contempt of court based

upon the giving or producing of such testimony.