Md. Code, Criminal Law § 9–415

(a) This section does not apply to an alcoholic beverage delivered or possessed in a manner authorized by the managing official.

(b) A person may not:

(1) deliver an alcoholic beverage to a person detained or confined in a place of confinement; or

(2) possess an alcoholic beverage with the intent to deliver it to a person detained or confined in a place of confinement.

(c) A person detained or confined in a place of confinement may not knowingly possess or receive an alcoholic beverage.

(d) A person who violates this section is guilty of a misdemeanor and on conviction is subject to imprisonment not exceeding 3 years or a fine not exceeding $1,000 or both.