Minn. R. Crim. P. 22.03
As amended through February 1, 2024
A subpoena may be served by the sheriff, a deputy sheriff, or any person at least 18 years of age who is not a party.
Service of a subpoena on a person must be made by delivering a copy to the person or by leaving a copy at the person's usual place of abode with a person of suitable age and discretion who resides there.
A subpoena may also be served by U.S. mail, but service is effective only if the person named returns a signed admission acknowledging personal receipt of the subpoena. Fees and mileage need not be paid in advance.
Minn. R. Crim. P. 22.03