Maryland Criminal Law Section 12-301
§ 12-301.
  In this subtitle:
    (1)   "slot machine" means a machine, apparatus, or device that:
      (i)   operates or can be made to operate by inserting, depositing, or placing with another person money, a token, or another object; and
      (ii)   through the element of chance or any other outcome unpredictable by the user, awards the user:
        1.   money, a token, or other object that represents or that can be converted into money; or
        2.   the right to receive money, a token, or another object that represents and can be converted into money; and
    (2)   "slot machine" includes:
      (i)   a machine, apparatus, or device described in item (1) of this section that also sells, delivers, or awards merchandise, money, or some other tangible thing of value; and
      (ii)   a pinball machine or console machine that pays off in merchandise.