Md. Code, Crim. Proc. § 4-102 : CRIMINAL PROCEDURE — PRETRIAL PROCEDURES — CHARGING PROCEDURES AND —102 - Charge by criminal information

A State's Attorney may charge by information:

(1) in a case involving a felony that does not involve a felony within the jurisdiction of the District Court, if the defendant is entitled to a preliminary hearing but does not request a hearing within 10 days after a court or court commissioner informs the defendant about the availability of a preliminary hearing; or
(2) in any other case, if a court in a preliminary hearing finds that there is probable cause to hold the defendant.

Md. Code, CP § 4-102