Md. Code, Criminal Law § 6–408

(a) A person may not enter on the property of another for the purpose of invading the privacy of an occupant of a building or enclosure located on the property by looking into a window, door, or other opening.

(b) A person who violates this section is guilty of a misdemeanor and on conviction is subject to imprisonment not exceeding 90 days or a fine not exceeding $500 or both.