Tennessee Code Title 26. Execution § 26-6-108

(a) For the purposes of this section only, a “foreign defamation judgment” shall mean any judgment for a cause of action equivalent or fundamentally similar to an action for libel or slander that is rendered by a court or tribunal outside the United States or its territories or possessions. This section shall not apply to any judgment for defamation, slander or libel rendered by a federal court or a court or tribunal in this or any other state of the United States, its territories or possessions.

(b) In addition to any other defenses that may exist, no foreign defamation judgment shall be authenticated, or execution issued upon, if:

(c) A foreign defamation judgment shall not be authenticated by any court of this state until it is established by a preponderance of the evidence that the defamation, libel or slander law applied in the foreign defamation court's jurisdiction provides the same or higher protection for freedom of speech and press as would be provided under both the United States and Tennessee Constitutions. If it is determined that the law in the foreign defamation judgment's jurisdiction provides such same or greater protection, then the court may proceed to consider if the judgment may be authenticated as a foreign judgment. If it is determined that the law in the foreign defamation judgment's jurisdiction does not provide such same or greater protection, or if no finding is made on this point, then the court may not authenticate that foreign defamation judgment and the same shall be void until such time as the court may make or reverse its findings.