Maryland Election Law Section 16-304

      (a)      In a polling place on election day, an election judge may not willfully and knowingly:

            (1)      permit a ballot or ballots to be placed into a ballot receptacle prior to the time for voting; or

            (2)      place a ballot in a ballot receptacle unless the ballot is offered by a properly registered voter or is a provisional ballot placed with other provisional ballots of the same character.

      (b)      A person may not:

            (1)      cause or permit a ballot, including a provisional ballot, to be cast or deposited in a ballot receptacle, voting device, or other receptacle designed for the collection of ballots other than by a person entitled under this article to cast a ballot; or

            (2)      substitute, alter, add, or remove a submitted ballot from a ballot receptacle, voting device, or other receptacle designed for the collection of ballots, except when instructed to do so by the election director.

      (c)      A person who violates this section is guilty of a felony and is subject to imprisonment for not less than 1 year nor more than 5 years.