Section 30-5-112 - Summoning witnesses and production of record; no abridgment of rights; failure to testify(a) The commission shall have the power to summon witnesses, to administer oaths, and to require the production of records, books, and documents for examination at any hearing or investigation conducted by it. No person shall be excused from attending and testifying, or from producing books, papers, and records before the commission or a court, or from obedience to the subpoena of the commission or a court, on the ground or for reason that the testimony or evidence, documentary or otherwise, required of him may tend to incriminate him or subject him to a penalty or forfeiture; provided, that nothing herein contained shall be construed as requiring any person to produce any books, papers, or records, or to testify in response to any inquiry not pertinent to some question lawfully before the commission or court for determination. No natural person shall be subjected to criminal prosecution or to any penalty or forfeiture for or on account of any transaction, matter, or thing concerning which, in spite of his objection, he may be required to testify or produce evidence, documentary or otherwise, before the commission or court, or in obedience to a subpoena; provided, that no person testifying shall be exempted from prosecution and punishment for perjury committed in so testifying. (b) Nothing in this act, and no suit by or against the commission, and no violation charged or asserted against any person under any provisions of this act, or any rule, regulation or order issued hereunder, shall impair or abridge or delay any cause of action for damages which any person may have or assert against any other person violating any provision of this act, or any rule, regulation, or order issued thereunder. Any person so damaged by the violation may sue for and recover such damages as he otherwise may be entitled to receive. In the event the commission shall fail to bring suit to enjoin any actual or threatened violation of this act, or of any rule, regulation or order made hereunder, then any person or party in interest adversely affected and who has notified the commission in writing of such violation or threat thereof and has requested the commission to sue, may, to prevent any or further violation, bring suit for that purpose in the district court of any county in which the commission could have brought suit. If, in such suit, the court holds that injunctive relief should be granted, then the commission may be made a party and the court may in its discretion order the commission to be substituted for the person who brought the suit or the injunction issue as to the court may be deemed meet and proper in the premises. (c) In case of failure or refusal on the part of any person to comply with a subpoena issued by the commission, or in case of the refusal of any witness to testify as to any matter regarding which he may be interrogated, any district court in the state, upon the application of the commission, may in term time or vacation issue an attachment for such person and compel him to comply with such subpoena, and to attend before the commission and produce such records, books and documents for examination, and to give his testimony. Such court shall have the power to punish for contempt as in the case of disobedience to a like subpoena issued by the court, or for refusal to testify therein.