Okla. Stat. tit. 79, § 79-102: Penalties - Actions - Discovery and evidence

In case any bridge or other contractor or other person,

partnership, corporation or association subject to the provisions of

this article shall do or cause to be done any act, matter or thing

herein prohibited or declared to be unlawful, or shall omit to do

any act, matter or thing herein required to be done, such bridge or

other contractor or other person, corporation or association shall

be liable to the state, municipality or person injured thereby to

three times the amount of the damages sustained in consequence of

any such violation, together with a reasonable counsel or attorney's

fee, to be fixed by the court in every case of recovery, which

attorney's fee shall be taxed and collected as a part of the costs

in the case: And in any such action brought for recovery of

damages, the court before whom the same shall be pending may compel

any bridge or other contractor, partnership, corporation or

association subject to the provisions of this article, or any

director, officer, receiver, trustee, agent, employee or clerk of

them, or either of them, defendant in said suit to appear and

testify in such case, and may compel the production of books and

papers of such bridge contractor, person, partnership, corporation

or association party to said suit, no such testimony or evidence

shall be used against such person in the trial of any criminal

proceedings, nor shall any person so testifying be prosecuted in any

criminal proceedings for or on account of any act disclosed or

divulged by his testimony.