Maryland Courts and Judicial Proceedings Section 3-821
§ 3-821.
  (a)   The court, on its own motion or on application of a party, may issue an appropriate order directing, restraining, or otherwise controlling the conduct of a person who is properly before the court, if the court finds that the conduct:
    (1)   Is or may be detrimental or harmful to a child over whom the court has jurisdiction;
    (2)   Will tend to defeat the execution of an order or disposition made or to be made under this subtitle; or
    (3)   Will assist in the rehabilitation of or is necessary for the welfare of the child.
  (b)   Subsection (a) of this section shall apply to a person not a party to the petition if the person is given:
    (1)   Notice of the proposed order controlling the person's conduct; and
    (2)   The opportunity to contest the entry of the proposed order.
  (c)   An order issued under this section is enforceable under Title 15, Chapter 200 of the Maryland Rules.