Maryland Code, Courts and Judicial Proceedings § 3-814

(1) In accordance with an order of the court;

(2) In accordance with § 5-709 of the Family Law Article; or

(3) By a law enforcement officer if the officer has reasonable grounds to believe that the child is in immediate danger from the child's surroundings and that the child's removal is necessary for the child's protection.

(1) Immediately notify the child's parent, guardian, or custodian;

(2) Immediately notify the local department; and

(3) Keep custody only until the local department either takes custody under § 3-815 of this subtitle or authorizes release of the child unless the officer determines that it is safe to return the child to the child's parent, custodian, or guardian.

(c)(1) If a parent, guardian, or custodian fails to bring the child before the court when requested, the court may issue a writ of attachment directing that the child be taken into custody and brought before the court.

(2) The court may proceed against the parent, guardian, or custodian for contempt.