Maryland Statutes
Subtitle 9 - Surveillance and Other Crimes Against Privacy
Section 3-905 - Opening Letter Without Permission

(a)    A person may not take and break open a letter that is not addressed to the person without permission from the person to whom the letter is addressed or the personal representative of the addressee’s estate.
    (b)    A person who violates this section is guilty of a misdemeanor and on conviction is subject to imprisonment for 6 days and a fine of $15.