Minn. R. Evid. 1005
The contents of an official record, or of a document authorized to be recorded or filed and actually recorded or filed, including data compilations in any form, if otherwise admissible, may be proved by copy, certified as correct in accordance with Rule 902 or testified to be correct by a witness who has compared it with the original. If a copy which complies with the foregoing cannot be obtained by the exercise of reasonable diligence, then other evidence of the contents may be given.
Minn. R. Evid. 1005
Committee Comment-1977
An official record or authorized document which has been filed or recorded may be proved by a certified copy. This is consistent with existing practice under Minnesota Statutes, section 600.13(1974). If a certified copy is not obtainable, the record can be established by other types of evidence including oral testimony.