Maryland Courts and Judicial Proceedings Section 9-401

      Whenever any mandate, writ, or commission is issued out of any court of record in any other state, territory, district, or foreign jurisdiction, or whenever upon notice or agreement it is required to take the testimony of a witness or witnesses in the State, witnesses may be compelled to appear and testify in the same manner and by the same process and proceeding as may be employed for the purpose of taking testimony in proceedings pending in the State.