If the custodian determines that disclosure of any public record that is required to be disclosed under State Government Article, §10-611 --10-628, Annotated Code of Maryland, would do substantial injury to the public interest, the custodian may temporarily deny the request, and within 10 working days of the denial, petition the appropriate circuit court for an order permitting continued denial or restriction of access. The Department shall serve a copy of the petition on the applicant as provided for service of process by Courts and Judicial Proceedings Article, §6-301, Annotated Code of Maryland.
Md. Code Regs. 08.01.06.10