Tenn. R. Crim. P. 12.1
Advisory Commission Comment.
This rule conforms to the federal rule, and is part of the discovery package.
Rule 12.1 discovery is triggered by the written demand of the district attorney general. Note also that the state must reciprocate by furnishing the names of its witnesses who are expected to contradict the alibi witnesses.
Of significance to the trial judges is the provision of section (e): For good cause shown, the court may grant an exception to the requirements of this rule. The court should always state on the record the reason(s) for such a ruling.