Tenn. Code § 71-6-105
Any person making any report or investigation pursuant to this part, including representatives of the department in the reasonable performance of their duties and within the scope of their authority, shall be presumed to be acting in good faith and shall thereby be immune from any liability, civil or criminal, that might otherwise be incurred or imposed. Any such participant shall have the same immunity with respect to participation in any judicial proceeding resulting from such report or investigation. Any person making a report under this part shall have a civil cause of action for appropriate compensatory and punitive damages against any person who causes a detrimental change in the employment status of the reporting party by reason of the report.
T.C.A. § 71-6-105