Minn. Stat. § 117.165
In all eminent domain proceedings where an appeal is taken to the district court from the award of commissioners, the owner or the petitioner shall be entitled to a jury trial.
In the event of an appeal from the award of commissioners, and upon written demand by a party, the other party shall disclose under oath in writing within 15 days the appraisal witnesses the disclosing party proposes to call on its behalf at trial, and the amount of their appraisals of the damages. The demand shall be deemed continuing.
A party shall not be permitted at the trial, except for just cause shown, to use any expert witness on the matter of damages whose name, address and appraisal was not disclosed to the other party following a written demand.
Minn. Stat. § 117.165
1971 c 595 s 20