Maryland Statutes
Subtitle 3 - Confidential Financial Records
Section 1-304 - Permitted Disclosures -- Subpoena

(a)    In this section, “subpoena” means a subpoena, summons, warrant, or court order that appears on its face to have been issued on lawful authority.
    (b)    A fiduciary institution may disclose or produce financial records or information derived from financial records in compliance with a subpoena served on the fiduciary institution, if:
        (1)    The subpoena contains a certification that a copy of the subpoena has been served on the person whose records are sought by the party seeking the disclosure or production of the records; or
        (2)    Contains a certification that service has been waived by the court for good cause.