Miss. Code § 41-31-21
If in the opinion of the medical director of the Mississippi State Hospital or the East Mississippi State Hospital, any person willfully and consistently fails to be rehabilitated after three commitments to any state institution, said medical director may refuse further admission to such person notwithstanding the order of any court, unless such person on the fourth or any succeeding commitment be committed by an order of the chancery court as provided by this chapter, and before entering said institution on a fourth or any succeeding commitment, such person, or someone for such person committed, shall pay to said institution the sum of Fifty Dollars ($50.00) per month in advance for the care, custody, support and maintenance of such person in said institution.
Such person, or someone for such person, failing or refusing to make the payment herein provided, before admission on a fourth or succeeding commitment, or any time during said commitment, shall be cause for the medical director of such institution to refuse admission of such person committed under this chapter, or to dismiss such person committed under this chapter after commitment.
The monthly payment herein provided shall be a condition precedent to admission of a person on a fourth or subsequent commitment, and shall be made each month thereafter in advance on or before the last day of the preceding month for which payment is due.
There shall be no refunds of the monthly payment herein provided on account of such person committed hereunder having failed to remain a full month at such institution.
Miss. Code § 41-31-21