21 Miss. Code. R. 201-6.9
All motions shall be in writing, unless made during a hearing. A motion shall state with particularity the grounds therefore, shall be supported by a memorandum of authorities, and shall set forth the relief or order sought. Every written motion shall be filed with the hearing officer and served by the moving party upon the opposing party or as the hearing officer directs.
An opposing party shall have ten (10) calendar days after service of the motion within which to file and serve a memorandum of authorities in opposition to the motion. The moving party shall have five (5) calendar days after service of the opposing memorandum to serve and file a reply memorandum of authorities if he so desires. If a motion or opposition is served by mail, three (3) calendar days shall be added to the time periods specified herein for response.
The failure of a moving party to file a memorandum of authorities in support of a motion shall constitute consent to the denial of the motion. The failure of an opposing party to file a memorandum of points and authorities in opposition to any motion shall constitute consent to the granting of the motion.
21 Miss. Code. R. 201-6.9