Secrecy of returns.
(a)Except as may be necessary for the enforcement of this…#
(a) Except as may be necessary for the enforcement of this chapter, it shall be unlawful for any officer or employee, or any former officer or employee, of the District to divulge or make known in any manner any particulars set forth or disclosed in any return required to be filed under this chapter, and neither the original nor a copy of any return desired for use in litigation in court shall be furnished where neither the District nor the United States is interested in the result of the litigation, whether or not the request is contained in an order of the court.