Tennessee Code Title 39. Criminal Offenses § 39-13-812

(a) A person who in good faith makes a report of suspicious activity or behavior shall be immune from civil and criminal liability for the making of the report if the report is based on articulable suspicion.

(b) As used in this section, “report of suspicious activity or behavior” means any communication to a law enforcement officer or agency or other appropriate authority of the behavior or activity of another person if the report is made with the articulable belief that the behavior or activity constitutes or is in furtherance of an act of terrorism.

(c) This section shall not apply to the intentional making of a report known to be false, including a violation of § 39-16-502, or to a report made with reckless disregard for the truth of the report.