Mississippi Code Title 5. Legislative Department § 5-1-23

If any witness neglects or refuses to obey a subpoena, or, appearing, refuses to testify, the senate or house may, by a resolution entered on its journal, commit him for contempt, the commitment not to extend beyond the final adjournment of the session; and any witness neglecting and refusing to attend in obedience to a subpoena may be arrested by the sergeant-at-arms and brought before the senate or house; and a copy of the resolution of the senate or house, signed by the presiding officer thereof, and attested by the secretary or clerk, shall be sufficient authority to authorize such arrest.