The Federal Bureau of Investigation (FBI) and the Defense Intelligence Agency are among several government entities known to have solicited private data brokers to access information for which a court order is generally required. A growing number of lawmakers have come to view the practice as an end run around the US Constitution’s Fourth Amendment guarantees against unreasonable government searches and seizures.

Cameron, D. (2023, July 18). Rival US Lawmakers Mobilize to Stop Police From Buying Phone Data. Wired. https://www.wired.com/story/fourth-amendment-is-not-for-sale-act-2023/