No person may be convicted of illegally selling any alcoholic beverage to any underage person pursuant to § 35-9-1 or 35-9-1.1, if the underage person was in possession of, and the seller relied upon, any false age-bearing identification document that was furnished to the underage person by any state agency or local law enforcement agency or any agent, employee, contractor, or associate of any state agency or local law enforcement agency for the purpose of attempting to illegally purchase any alcoholic beverage.
SDCL 35-9-1.3