North Carolina General Statutes Chapter 15A. Criminal Procedure Act § 15A-264. Assistance in installation and use of a pen register or a trap and trace device

(a) Pen Registers.--Upon the request of a law enforcement officer authorized to install and use a pen register under this Article, a provider of wire or electronic communication service, a landlord, a custodian, or other person shall furnish the officer promptly with all information, facilities, or technical assistance necessary to accomplish the installation of the pen register unobtrusively and with a minimum of interference with the communication services, if the assistance is directed by a court order as provided in G.S. 15A-263(b)(2).

(b) Trap and Trace Devices.--Upon the request of a law enforcement officer authorized to receive the results of a trap and trace device under this Article, a provider of a wire or electronic communication service, a landlord, a custodian, or other person shall install the device immediately on the appropriate line and shall furnish the officer all additional information, facilities, or technical assistance, including installation and operation of the device unobtrusively and with a minimum of interference with the communication services, if the installation and assistance are directed by court order as provided in G.S. 15A-263(b)(2). Unless otherwise ordered by the judge, the results of the trap and trace device shall be furnished to the law enforcement officer designated in the court order at reasonable intervals during regular business hours for the duration of the order.

(c) Compensation.--A provider of a wire or electronic communication service, a landlord, a custodian, or other person who furnishes facilities or technical assistance pursuant to this section shall be compensated for the reasonable expenses incurred in providing the facilities and assistance.

(d) No Cause of Action Against a Provider Giving Information or Assistance Under this Article.--No cause of action shall be allowed in any court against any provider of a wire or electronic communication service, its officers, employees, agents, or other specified persons for providing information, facilities, or assistance in accordance with the terms of a court order under this Article.

(e) Defense.--A good faith reliance on a court order or a statutory authorization is a complete defense against any civil or criminal action brought under this Article or any other law.