Tenn. Code § 26-2-406
A sheriff or other officer who summons a garnishee shall provide the garnishee with three (3) copies of the garnishment summons providing the completed notice required by § 26-2-404 or by § 26-2-216, whichever is applicable. On that same or the next working day, the garnishee shall determine if such garnishee possesses or controls money or property of the judgment debtor; and if so, within that same time period shall furnish a copy of the garnishment summons and notice by mailing them first class, postage prepaid, to the judgment debtor's last known address as shown by the garnishee's records, or by actual delivery to the judgment debtor. If the address as shown by the garnishee's records differs from that provided by the creditor as shown on the bottom of the completed notice, the garnishee shall also mail a copy of the garnishment and notice to the judgment debtor at the latter address by first class mail, postage prepaid.
T.C.A. § 26-2-406