Mississippi Code Title 77. Public Utilities and Carriers § 77-3-49

The commission may issue subpoenas, subpoenas duces tecum and all necessary process in proceedings pending before it. Such process shall extend to all parts of the state and may be served by any person authorized to serve process of courts of record. All process issued by the commission shall be signed by the chairman or secretary of the commission, and the seal of the commission shall be affixed thereto.

The commission and each of the commissioners, for the purpose mentioned in this article, may administer oaths, examine witnesses and certify official acts.

In case of failure on the part of any person or persons to comply with any lawful order of the commission, or with any subpoena or subpoenas duces tecum, or in the case of the refusal of any witness to testify concerning any matter on which he may be interrogated lawfully, any court of record of general jurisdiction or a judge thereof, may on application of the commission compel obedience by proceedings for contempt as in the case of disobedience of the requirements of a subpoena issued from such court or a refusal to testify therein.