Maryland Code, Local Government § 11-308

(1) immediately notify the parent or guardian of the minor to come take custody of the minor; and

(2) determine whether, consistent with constitutional safeguards, the minor or the parent or guardian, or both, are in violation of the juvenile curfew ordinance.

(b)(1) If the parent or guardian arrives to take custody of the minor and the appropriate information is recorded, the minor shall be released to the custody of the parent or guardian.

(2) If the parent or guardian cannot be located or fails to take custody of the minor, the minor shall be released to: