Tenn. Code Ann. § 40-6-212: Execution outside county

When the sheriff, deputy sheriff, coroner or any other officer of any county in this state has possession of a warrant or capias for the arrest of any person charged with the commission of a crime, it is lawful for the sheriff, deputy sheriff, coroner or any other officer to execute that process, and arrest the person so charged in any county in this state. "Sheriff" also includes "constable" in those counties enumerated in § 40-6-210 .