Md. Code, Courts and Judicial Proceedings § 8–417

(a) This section applies only to a grand jury for Baltimore City.

(b) In addition to any other duty imposed by law, each grand jury shall carry out an investigation if a judge of the circuit court directs.

(c) At the end of the period for which a grand jury sits, the grand jury shall submit to the jury commissioner of the circuit court a report on each of its investigations and recommendations.