Maryland Code, Criminal Law § 7-304

(a)(1) In this section the following words have the meanings indicated.

(2) “Customer” means a person who subscribes to, or is financially responsible for a subscription to, telephone service from a telephone company.

(3) “Telephone” means a device used by a person for voice communications transmitted in analog, data, or any other form.

(4) “Telephone company” means a person that provides commercial telephone service to a customer, regardless of the communication technology used, including:

(1) a person acting under a valid court order, warrant, or subpoena; or

(2) a law enforcement officer acting in the performance of official duty.

(1) knowingly obtain, attempt to obtain, or solicit or conspire with another to obtain, a telephone record:

(2) knowingly sell or attempt to sell a telephone record without the authorization of the customer to whom the record pertains; or

(3) receive a telephone record:

(d)(1) A violation of this section is an unfair or deceptive trade practice under Title 13 of the Commercial Law Article.

(2) A person who violates this section is guilty of a misdemeanor and on conviction is subject to imprisonment not exceeding 2 years or a fine not exceeding $2,000 or both.

(1) an element of the crime occurred; or

(2) the victim resides.

(1) as otherwise authorized by law;

(2) with the consent of the customer;

(3) in connection with service provided to the customer;

(4) for purposes of billing or collection from the customer;

(5) as necessary to prevent fraud or abusive practices;

(6) to a governmental entity, if the telephone company reasonably believes that an emergency involving immediate danger of death or serious physical injury to any person justifies disclosure of the telephone record; or

(7) to the National Center for Missing and Exploited Children, in connection with a report submitted under § 227 of the federal Victims of Child Abuse Act of 1990.  1