It shall be unlawful for any such junk dealer to purchase any item or items of junk after the effective date of this act without demanding and receiving from the seller thereof information as to ownership. Every junk dealer shall file and maintain a record of ownership of items purchased pursuant to any transaction described in K.S.A. 50-620. All records kept in accordance with the provisions of this act shall be open at all times to peace and police officers, except as otherwise prescribed by the city ordinances regulating the activities of junk dealers and shall be kept for two (2) years.
K.S.A. 50-621