Tennessee Code Annotated (T.C.A.) (2016)
Title 39. Criminal Offenses
Chapter 11. General Provisions
Part 6. Justification Excluding Criminal Responsibility
39-11-612. Defense of third person.
A person is justified in threatening or using force against another to protect a third person, if:
(1) Under the circumstances as the person reasonably believes them to be, the person would be justified under § 39-11-611 in threatening or using force to protect against the use or attempted use of unlawful force reasonably believed to be threatening the third person sought to be protected; and
(2) The person reasonably believes that the intervention is immediately necessary to protect the third person.