Mississippi Code Title 77. Public Utilities and Carriers § 77-1-33

In any matter of inquiry pending before the commission or any member thereof, subpoenas for witnesses, and subpoenas duces tecum, may be issued by the secretary, under seal, or by any member without the seal, and shall be executed and returned by any sheriff, constable, or marshal, under the like penalties of law for failure to execute and return the process of the circuit court. If any person duly summoned to appear and testify before the commission, or before any one or more of the commissioners, shall fail or refuse to appear and testify, or to bring and produce, as commanded, any book, paper, or document, without a lawful excuse, or shall refuse to answer any proper question propounded to him by the commission or any of the commissioners, or if any person shall obstruct the commission, or one or more of the commissioners in the discharge of duty, or shall conduct himself in a rude, disrespectful, or disorderly manner before the commission deliberating in the discharge of duty, such witness or person shall be guilty of a misdemeanor, and, upon conviction, shall be fined not more than One Thousand Dollars ($1,000.00), or be imprisoned in the county jail for a period not exceeding six (6) months, or both.