The Fourth Amendment does not require the police to obtain judicial authorization before using this device,but federal law requires it and sets the procedure for obtaining it.

Question

Quizplus · Accepted Answer

The Fourth Amendment does not specifically require police to obtain judicial authorization for using a pen register, which records numbers dialed from a phone, but federal law does require it and outlines the procedure for obtaining such authorization. This is because pen registers are considered less invasive than other forms of surveillance, as they do not capture the content of communications.

The Fourth Amendment Does Not Require the Police to Obtain