Minn. Stat. § 270B.03
Subd. 1. Who may inspect.
Returns and return information must, on request, be made open to inspection by or disclosure to the data subject. The request must be made in writing or in accordance with written procedures of the chief disclosure officer of the department that have been approved by the commissioner to establish the identification of the person making the request as the data subject. For purposes of this chapter, the following are the data subject:
(4) in the case of an estate return:
(5) in the case of a trust return:
(7) in the case of an Indian tribal government or an Indian tribal government-owned entity:
Subd. 2. Wards and conservatees.
If an individual is legally subject to guardianship or conservatorship under sections 524.5-101 to 524.5-502, or similar laws of another state, that individual's return and return information is, upon written request, open to inspection by or disclosure to the guardian or conservator appointed for the individual or the individual's estate.
Subd. 3. Deceased individuals.
Notwithstanding section 13.10, a return filed by or on behalf of a decedent is open to inspection by or disclosure to:
Subd. 4. Title 11 of the United States Code and receivership proceedings.
(a) A return is open to inspection by or disclosure to the trustee or receiver if:
Subd. 5. Attorney in fact.
Any return or return information to which this section applies is open to inspection by or disclosure to the attorney in fact duly authorized in a writing signed by the data subject or to the person or persons designated by the data subject in a request for or consent to the disclosure. The request must be made in writing or in accordance with written procedures of the chief disclosure officer of the department that have been approved by the commissioner to establish the identification of the person making the request as the data subject.
Subd. 6. Investigative data.
For purposes of any law administered by the Department of Revenue, including laws not listed in section 270B.01, subdivision 8, investigative data collected or created by the Department of Revenue in order to prepare a case against a person, whether known or unknown, for the commission of a crime is confidential data on individuals or protected nonpublic data, as defined in section 13.02, subdivisions 3 and 13, during an investigation. When the investigation becomes inactive, as defined in section 13.82, subdivision 7, the data is private data on individuals or nonpublic data, as defined in section 13.02, subdivisions 9 and 12.
Subd. 7. Requests.
The commissioner may prescribe a form to be completed by the data subject requesting or authorizing inspection or disclosure of returns and return information.
Subd. 8.
[Repealed, 1Sp2003 c 8 art 2 s 20]