MT Code § 46-4-403 (2021)
2021 Montana Code Annotated|Title 46. Criminal Procedure|Chapter 4. Investigative Procedures|Part 4. Custodial Interrogations -- Recording|46-4-403. Order for pen register or trap and trace device -- installation -- disclosures

  46-4-403. Order for pen register or trap and trace device -- installation -- disclosures. (1) A prosecutor may apply to the district court for an order, or for the extension of an existing order, for the installation and use of a pen register or a trap and trace device. The application must be in writing and under oath. The application must name the prosecutor and must also name the law enforcement agency that will use the pen register or trap and trace device. The applicant shall show probable cause for the order.   (2) If the court is satisfied that the applicant has shown probable cause for the order, the court shall issue the order. The order must state:   (a) the name, if known, of each person to whom the telephone line is leased or in whose name the telephone line to which a pen register or trap and trace device is to be attached is listed;   (b) the name, if known, of each person who is the subject of the criminal investigation;   (c) the number and, if known, the physical location of each telephone line to which a pen register or trap and trace device is to be attached and, for a trap and trace device, the geographic limits of the court order; and   (d) the offense or offenses to which the information that might be obtained relates.   (3) The order must direct the provider of the telephone service and a landlord, custodian, or other person to furnish the prosecutor and law enforcement agency with the information, facilities, and technical assistance necessary to install and operate the pen register or trap and trace device. The installation and operation must create the most minimal interference with the telephone service of each person whose originating or transmitted telephone number is recorded or decoded. Information received by the service provider from the operation of the pen register or trap and trace device must be given to the law enforcement agency at reasonable intervals during regular business hours.   (4) The order may cover a period not to exceed 60 days and may be extended for periods not to exceed 60 days for each extension. An extension may be granted only if the court is satisfied that probable cause for the extension has been shown.   (5) A person leasing or owning a telephone line that is subject to the order, the provider of the service, and any other person with knowledge of the order, pen register, or trap and trace device may not disclose the existence of the order, pen register, or trap and trace device to any person without the court's permission.   (6) A service provider, landlord, custodian, or other person must be reasonably compensated by the law enforcement agency for expenses incurred in furnishing facilities or assistance relating to the order.   (7) Proceedings conducted under this section are subject to the secrecy and disclosure provisions relating to grand jury proceedings. Any information obtained pursuant to an order issued under this section is confidential criminal justice information subject to the provisions of Title 44, chapter 5.   History: En. Sec. 3, Ch. 97, L. 1999.