1. It shall be the duty, on pain of contempt of court, of each telephone company in this Commonwealth to furnish immediately in response to a subpoena issued by a circuit court such information as it, its officers and employees may possess which, in the opinion of the court, may aid in the apprehension of persons suspected of violating the provisions of this article or the provisions of § 18.2-83 or § 18.2-212.
2. Every telephone directory distributed to the public which lists the calling numbers of telephones or of any telephone exchange located in this Commonwealth shall contain a notice which explains the offenses made punishable under this article, such notice to be printed in type which conforms with and is comparable to other type on the same page, and to be placed in a prominent place in such directory. Any violation of this subsection shall be punishable as a Class 4 misdemeanor.