(1) Each licensee shall keep a complete set of all records necessary to show fully the business transactions of the licensee, all of which shall be open at all times during business hours for the inspection and examination of the state licensing authority or its duly authorized representatives. The state licensing authority may require any licensee to furnish such information as it considers necessary for the proper administration of this article 11 and may require an audit to be made of the books of account and records on such occasions as it may consider necessary by an auditor to be selected by the state licensing authority who shall likewise have access to all books and records of the licensee, and the expense thereof shall be paid by the licensee.

(2) The licensed premises, including any places of storage where medical marijuana is grown, stored, cultivated, sold, or dispensed, shall be subject to inspection by the state or local licensing authorities and their investigators, during all business hours and other times of apparent activity, for the purpose of inspection or investigation. For examination of any inventory or books and records required to be kept by the licensees, access shall be required during business hours. Where any part of the licensed premises consists of a locked area, upon demand to the licensee, such area shall be made available for inspection without delay, and, upon request by authorized representatives of the state or local licensing authority, the licensee shall open the area for inspection.

(3) Each licensee shall retain all books and records necessary to show fully the business transactions of the licensee for a period of the current tax year and the three immediately prior tax years.