Md. Code, Public Safety § 3–506

(a) On or before December 1, 2007, each law enforcement agency in the State shall adopt written policies relating to eyewitness identification that comply with the United States Department of Justice standards on obtaining accurate eyewitness identification.

(b) On or before January 1, 2016, each law enforcement agency in the State shall:

(1) adopt the Maryland Police Training and Standards Commission’s Eyewitness Identification Model Policy; or

(2) adopt and implement a written policy relating to identification procedures that complies with § 3–506.1 of this subtitle.