US Code - Chapter 206: Pen registers and trap and trace devices

Section 3121 General prohibition on pen register and trap and trace device use; exception
Section 3122 Application for an order for a pen register or a trap and trace device
Section 3123 Issuance of an order for a pen register or a trap and trace device
Section 3124 Assistance in installation and use of a pen register or a trap and trace device
Section 3125 Emergency pen register and trap and trace device installation
Section 3126 Reports concerning pen registers and trap and trace devices
Section 3127 Definitions for chapter

Searches and seizures

Criminal procedure

Release and detention pending judicial proceedings