Miss. Code § 41-21-99
The director shall obtain all the available facts relative to the illness of each patient admitted to said treatment facility. The director or a physician on the staff of said treatment facility shall, as often as practicable but not less frequently than every six (6) months, examine the patient and review the records as to the need for continued treatment of each patient and make the results of such examination a part of the patient's clinical record. The patient shall have the right to request a hearing at least annually, pursuant to Section 41-21-83. The patient shall be advised of his right to request a hearing and of his right to consult an attorney prior to his decision concerning whether or not to request such hearing, and the fact that the patient has been so advised shall be documented in the clinical record.
Miss. Code § 41-21-99