Minn. Stat. § 631.50
When a person who is convicted of a felony or is found to be a person who is mentally ill is committed to the Minnesota Correctional Facility-Stillwater, the Minnesota Correctional Facility-St. Cloud, the county jail, or any other state or county institution which is supported, wholly or in part, by public funds, the chief executive officer, sheriff, or other officer in charge of the state or county institution shall at once inquire into the nationality of the person. If it appears that the person is an alien, the officer shall immediately notify the United States immigration officer in charge of the district in which the correctional facility, jail, or other institution is located of (1) the date of and the reasons for the alien commitment, (2) the length of time for which committed, (3) the country of which the alien is a citizen, and (4) the date on which and the port at which the alien last entered the United States.
Minn. Stat. § 631.50
(9950-1) 1927 c 301 s 1; 1976 c 2 s 155; 1979 c 102 s 13; 1985 c 265 art 11 s 1; 2002 c 221 s 49