Tenn. Code Ann. § 40-18-118

Notwithstanding any other provision of law or rule of court to the contrary, in any case in which a defendant is charged with an offense punishable by death, the defendant is entitled to fifteen (15) peremptory challenges and the state is entitled to fifteen (15) peremptory challenges for each such defendant. If the offense charged is punishable by imprisonment for more than one (1) year but not by death, each defendant is entitled to eight (8) peremptory challenges, and the state is entitled to eight (8) peremptory challenges for each defendant. If the offense charged is punishable by imprisonment for less than one (1) year or by fine, or both, each side is entitled to three (3) peremptory challenges for each defendant.