12 CFR §618.8330

1. (a)If your bank or association is a party to litigation with a borrower or a successor in interest, you or your directors, officers, or employees may disclose confidential information about that borrower or the successor in interest during the litigation.
2. (b)If the Government or your bank or association is not a party to litigation, you or your directors, officers, or employees may produce confidential documents or testimony only if a court of competent jurisdiction issues a lawful order signed by a judge.