Md. Code, Courts and Judicial Proceedings § 8–401

(a) Whenever a grand or trial jury is needed, a jury commissioner shall:

(1) Summons qualified jurors in the number needed; and

(2) Have the summons served as the jury plan requires.

(b) A jury commissioner shall address mail to an individual’s usual business or resident address.

(c) A summons sent to an individual with a juror qualification form shall instruct the individual to report for jury service unless a jury commissioner instructs otherwise.