Maryland Code, Courts and Judicial Proceedings § 5-619

(1) An employer that in good faith relies on a criminal background investigation or criminal history records check to deny or terminate an individual's employment or participation in a facility;

(2) A State or local agency that in good faith relies on a criminal background investigation or criminal history records check of an employer to grant, deny, suspend, or revoke licensure, registration, approval, or certification of a facility;

(3) A local department of social services that in good faith relies on a criminal background investigation to make a decision concerning the placement of a child committed to it, including a decision to remove a child from a particular facility or home; and

(4) A State or local agency that in good faith participates in the making of a criminal background investigation or criminal history records check of an employee or employer.