Minn. Stat. § 373.07: SUITS AGAINST COUNTIES; SERVICE; JURORS.

Service of summons or other original process in actions against a county shall be made upon the chair of the board or upon the county auditor, either during a session of the board, or within ten days before the day appointed for one. The person served shall immediately notify the county attorney of the service and give the board at its next regular meeting all the information the person has regarding the action. In actions in which the county is a party, its inhabitants, if otherwise qualified, may be jurors.