Md. Code, Local Gov't § 11-308

(a) When a minor is taken into custody for a violation of a juvenile curfew ordinance, the law enforcement officer shall: (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: (i) the local department of social services; (ii) the Department of Juvenile Services; or (iii) another adult who will, on behalf of the parent or guardian, assume the responsibility of caring for the minor pending the availability or arrival of the parent or guardian.