Minn. R. Juv. P. 13.09
Within seven (7) days of the conclusion of the trial, the court shall make a general finding that the allegations in the charging document have or have not been proved beyond a reasonable doubt. The court shall dismiss the charging document if the allegations have not been proved. An order finding that the allegations of the charging document have been proved shall state the child's name and date of birth; and the date and county where the offense was committed. Within fifteen (15) days of the conclusion of the trial, the court shall in addition specifically find the essential facts that support a general finding that the allegations in the charging document have been proved beyond a reasonable doubt in writing. If an opinion or memorandum of decision is filed, it is sufficient if the findings of fact appear therein. If the court omits a finding on any issue of fact essential to sustain the general finding, it shall be deemed to have made a finding consistent with the general finding. Findings may be made on the record, but must be reduced to writing within the fifteen (15) days required herein.
Minn. R. Juv. P. 13.09