If, in the opinion of the official custodian, disclosure of any public record which is otherwise required to be disclosed under the Act would do substantial injury to the public interest, the official custodian may temporarily deny the request in writing. In these cases, the official custodian shall apply within 10 working days of the denial to the appropriate circuit court for an order permitting him to continue to deny or restrict the disclosure. Notice of the application filed with the circuit court shall be served upon the applicant by the custodian in the same manner provided for service of process by the Maryland Rules of Procedure.
Md. Code Regs. 26.01.04.12