Maryland Criminal Law Section 7-204

      (a)      A person may not use, distribute, manufacture, duplicate, or possess keys capable of being used in locks in or on real property that the State owns or leases unless the use, distribution, manufacture, duplication, or possession is in accordance with the regulations adopted under subsection (c) of this section.

      (b)      A person who violates this section is guilty of a misdemeanor and on conviction is subject to a fine not exceeding $500 for each violation.

      (c)      (1)      The Department of General Services shall adopt regulations to govern the use, distribution, manufacture, duplication, and possession of keys capable of being used in locks in or on real property that the State owns or leases.

            (2)      Each key subject to the regulations adopted under this subsection shall be clearly identified by:

                  (i)      the words "do not duplicate" or "unlawful to duplicate"; and

                  (ii)      a symbol indicating State ownership.