Md. Code, Criminal Procedure § 11–702

For the purposes of this subtitle, a person is convicted when the person:

(1) is found guilty of a crime by a jury or judicial officer;

(2) enters a plea of guilty or nolo contendere;

(3) is granted a probation before judgment after a finding of guilt for a crime if the court, as a condition of probation, orders compliance with the requirements of this subtitle; or

(4) is found not criminally responsible for a crime.