§ Md. Election Law § 16-304(untitled)

(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.