Tenn. Code Ann. § 40-12-210

Disclosure of grand jury documents and proceedings may also be made under this part when:

• (1) Directed by a court preliminarily to or in connection with a judicial proceeding;

• (2) Disclosure is made by the district attorney general to another grand jury; or

• (3) Permitted by a court upon motion of the defendant showing grounds exist for a motion to dismiss the indictment because of matters occurring before the grand jury.

Acts 1990, ch. 1051, § 1.