Miss. Code Ann. § 21-29-141

Any member of the fire and/or police department who ceases to be an employee before becoming eligible to receive either a service or disability allowance, as provided by this article, may file a request in writing with the board of disability and relief for a refund of all sums contributed by him to the fund, which sums shall be paid to him, without interest, within one year of the filing of the request.