Tenn. Code Ann. § 66-23-109

The subpoena provided for in § 66-23-108 shall command the officer to summon the witnesses to appear before the clerk at the clerk's office, on a certain day specified in it, to give their evidence touching the execution of the instrument, or other authentication thereof, under a penalty of two hundred dollars ($200), to be recovered, in case of failure to attend, as other forfeitures for disobeying subpoenas.