(a) Notwithstanding the provisions of section five of this article, a financial institution may disclose or produce financial records upon being served with a subpoena issued under authority of a grand jury without notice or service upon the customer.
(b) Financial records obtained pursuant to a subpoena issued under the authority of a grand jury:
(1) Shall be returned and actually presented to the grand jury;
(2) Shall be used only: (A) For the purpose of considering whether to issue an indictment or presentment by that grand jury; (B) for the purpose of prosecuting a crime for which that indictment or presentment is issued; or (C) for any other purpose authorized by the West Virginia rules of criminal procedure; and
(3) Shall be destroyed or returned to the financial institution if not used for one of the purposes specified in subdivision (2) of this subsection.
(c) Financial records obtained pursuant to a subpoena issued under the authority of a grand jury and any descriptions of the contents of such financial records must be maintained in sealed records of the grand jury unless such financial records or descriptions thereof have been used in the prosecution of a crime for which the grand jury issued an indictment or presentment or for any other purpose authorized by the West Virginia rules of criminal procedure.