Minn. Stat. § 609.815: MISCONDUCT OF JUNK OR SECONDHAND DEALER.

Whoever is a junk dealer or secondhand dealer and does any of the following is guilty of a misdemeanor:

(1) has stolen goods in possession and refuses to permit a law enforcement officer to examine them during usual business hours; or

(2) purchases property from a person under lawful age, without the written consent of the person's parent or guardian.