Miss. Code § 21-29-209
The board shall fix a time for regular meetings in its minutes and it shall keep minutes of its meetings, which shall be public records. Special meetings may be held upon the call of the chairman of the board or any two (2) members thereof, upon twenty-four (24) hours' written notice, stating the purpose of the meeting, or at any time when all members are present.
The board shall have the duty and power to promptly hear and pass upon all applications of firemen and/or policemen or of beneficiaries of deceased firemen and of deceased policemen for participation in the benefits of said fund. Said board may hear witnesses, administer oaths, find facts, and make decisions in all matters properly before said board, which decisions shall be final except upon appeals in the way hereafter set forth. Said board shall order payments made according to the facts found and the provisions of this article, which payments shall be made as far as funds may be available. The board may invest the funds as provided in Section 25-11-121, and such funds may be commingled with other system funds for the most advantageous investments; however, each fund shall have separate accounting status.
Miss. Code § 21-29-209