Maryland Code, Local Government § 11-304

(1) a minor may not remain in a public place or on the premises of an establishment during curfew hours;

(2) a parent or guardian of a minor may not knowingly allow the minor to remain in a public place or on the premises of an establishment during curfew hours; and

(3) the owner, operator, or employee of an establishment may not knowingly allow a minor to remain on the premises of the establishment during curfew hours.