Law enforcement may conduct sting operations using minors in accordance with the requirements of T.C.A. § 39-15-413.  Criminal prosecutions for unlawful sales of beer for off-premises consumption to underage persons as a result of a sting operation using a person under the age of 21 cannot be commenced unless the person or law enforcement officer supervising the person used in the sting operation obtains the name of the permit holder and the employee of the permit holder from whom the beer was purchased or attempted to be purchased. The law enforcement officer is required to notify the permit holder in writing within 10 days of the sting that the action occurred, giving the name of the permit holder and the employee involved, and whether the person was successful in making the purchase.  T.C.A. § 39-15-413.