Tenn. Code Ann. § 7-63-203

In the event the offender refuses to sign the ordinance summons agreement to appear in court, the municipal enforcement officer in whose presence the violation is committed may have a summons issued by the clerk of the municipal, metropolitan, or city court, or the municipal enforcement officer may seek the assistance of a police or peace officer to witness the violation, who may issue a citation in lieu of arrest for the violation or make arrest for failure to sign the citation in lieu of arrest, as provided in § 7-63-104.