Maryland State Government Section 10-602

      The State, a political subdivision, or a unit of the State or of a political subdivision may keep only the information about a person that:

            (1)      is needed by the State, the political subdivision, or the unit to accomplish a governmental purpose that is authorized or required to be accomplished under:

                  (i)      a statute or other legislative mandate;

                  (ii)      an executive order of the Governor;

                  (iii)      an executive order of the chief executive of a local jurisdiction; or

                  (iv)      a judicial rule; and

            (2)      is relevant to accomplishment of the purpose.