Miss. Code § 27-105-333
In any county in this state where no depository or depositories were selected and qualified, as provided by law, on or before the first Monday of January 1932, or in which the depository or depositories are not selected and qualified annually thereafter on or before the first Monday in January, the board of supervisors of the county shall, at the January meeting of the board or any regular meeting or special meeting thereafter called for that purpose, select and designate a depository or depositories into which the tax collector or tax collectors of the county shall deposit all tax collections and other public funds collected after the first Monday in January 1932, when collected, and in which the same shall thereafter be distributed, at the time and in the manner as now required by law, to the several funds or accounts in which the same properly belong, as provided by law herein.
Any depository so selected by the board of supervisors shall be within the State of Mississippi and may hold the deposits at such rate of interest as may be agreed upon with the board of supervisors or, in the discretion of the board of supervisors, without liability for interest unless it is required to be paid under the provisions of Section 27-105-303, but the depository shall secure the deposits by pledging with the State Treasurer such securities in such amounts and upon such conditions as are now required by law of depositories that qualify as such by bidding for them.
Miss. Code § 27-105-333