SDCL § 35-9-2.2: Merchant to post notice if persons illegally attempting to purchase alcoholic beverages will be detained.

If a merchant chooses to implement the provisions of § 35-9-2.1, the merchant shall conspicuously post a notice, on the merchant's premises, stating that any person who the merchant reasonably believes was under the age of twenty-one and has attempted to purchase alcoholic beverages, will be detained and surrendered to a law enforcement officer.