Mississippi Code Title 5. Legislative Department § 5-3-59

(a) To subpoena and examine witnesses; to require the appearance of any person and the production of any paper or document; to order the appearance of any person for the purpose of producing any paper or document; and to issue all process necessary to compel such appearance or production. When such process has been served, the committee may compel obedience thereto by the attachment of the person, papers or records subpoenaed; and if any person shall wilfully refuse to appear before such committee or to produce any paper or record in obedience to any process issued by the committee and served on that person, he shall be guilty of contempt of the legislature and shall be prosecuted and punished as provided by law.

(b) To administer oaths to witnesses appearing before the committee when, by a majority vote, the committee deems the administration of an oath necessary and advisable as provided by law.

(c) To determine that a witness has perjured himself by testifying falsely before the committee, and to institute penal proceedings as provided by law.