Tenn. Code Ann. § 22-2-303

In those counties of the state where the circuit or criminal courts, or both, sit in two (2) places, the jury coordinators for those counties shall be required to select jurors from the territorial jurisdiction of each of the two (2) courts and will maintain two (2) sets of records, one (1) for each of the courts as is provided in this part, the same as if both courts were in separate counties.