Minn. Stat. § 385.14: INSURANCE, LOSS BY ROBBERY OR BURGLARY.

The treasurer of each county of the state may procure insurance against loss by robbery or burglary or both of public moneys in the treasury of the county or in course of transportation for the purpose of deposit, in such amount as may be approved by the board of county commissioners. The cost of such insurance shall be a charge upon the county and shall be paid in the same manner as other claims against the county are paid.