The commission shall purchase directly from the manufacturer, except under the following conditions:
In all instances involving purchases, other than directly from the manufacturer, the commission shall maintain full and complete records clearly reflecting the justification for such purchases. Said records shall include invoices, price lists, comparative prices, bills of lading and a certificate of justification signed by the director of the alcoholic beverage control division, as to the conditions requiring the purchase or purchases. All such records shall be retained for a period of three (3) years.
Miss. Code § 27-71-13