Md. Code, Criminal Procedure § 10–225

(a) This section applies only to criminal history record information recorded before July 1, 1976.

(b) Subject to subsection (c) of this section, a person has a right to inspect and challenge criminal history record information in accordance with this subtitle.

(c) On request by a person to inspect criminal history record information, a criminal justice unit:

(1) shall make a reasonable search for the information; but

(2) need not provide for the inspection of information that is not found after a reasonable search.