Miss. Code Ann. § 19-25-87: Miss. Code Ann. § 19-25-87

The sheriff of any county in which the federal government owns land is hereby authorized, with the approval of the board of supervisors, to receive funds from the corps of engineers of the United States Army for the purpose of defraying expenses incident to providing law enforcement on federally owned land. Such funds shall be kept in a separate account and may be expended by the sheriff, with the approval of the board of supervisors, for equipment, supplies, materials and deputies' salaries as necessary to effectuate the purposes of this section.