Minn. Stat. § 388.15
The county board of any county in this state, upon the request of the county attorney of such county, may appropriate, for the use of the county attorney, such funds, not otherwise appropriated, as the county attorney deems necessary for the investigation and the procuring of evidence when the county attorney has reason to believe that any closed bank, savings bank, trust company, or savings association incorporated under the laws of the state of Minnesota, has violated any provision of law. Such amount shall be in addition to the contingent fund of such county now allowed by law and shall be disbursed only on order of a district judge of the district in which any such county is located, approving such expenditure.
The county board, if no funds are available, may borrow such money as it deems necessary to carry out the provisions of this section, but such loan shall not run over one year.
Minn. Stat. § 388.15
(934-1, 934-2) 1925 c 264 s 1,2; 1986 c 444; 1995 c 202 art 1 s 25