Search and Seizure: The 4th Amendment
“The right of the people to be secure in their persons, houses, papers, and effects, against unreasonable searches and seizures, shall not be violated, and no Warrants shall issue, but upon probable cause, supported by Oath or affirmation, and particularly describing the place to be searched, and the persons or things to be seized.”

1. Secure in Persons, Houses, Papers, and Effects
- You have a right to privacy in your body, your home, your documents, and your belongings.
Translation: The government can’t just barge in and take your stuff.
2. Against Unreasonable Searches and Seizures
- Law enforcement needs justification, not just suspicion or curiosity.
Translation: Police can’t search you, your house, or your car without a good reason.
3. Warrants Require Probable Cause
- A judge must approve searches and seizures, based on sworn evidence.
Translation: The government needs a warrant with specifics; where they’re searching and what they’re looking for.
How It’s Treated Today
- Traditional Searches: Police generally need warrants, but there are many exceptions (plain sight, consent, “exigent circumstances”).
- Technology: Courts have struggled with how the Fourth Amendment applies to phones, emails, GPS trackers, and online data. Example: Riley v. California (2014) ruled police need a warrant to search your smartphone.
- Border & Airport Security: Exceptions are broader; searches can be done without warrants in the name of national security.
- Surveillance: Programs like the NSA’s mass data collection (revealed by Snowden) push the boundaries of what’s “reasonable.”
How It Should Be Applied
- Privacy should extend to modern equivalents of “papers and effects”: phones, cloud accounts, encrypted files, financial data.
- “Probable cause” must remain a real standard, not watered down into vague suspicion.
- National security should not become a blanket excuse for indefinite surveillance on citizens.
- Equal application is key: if the wealthy and powerful can protect their data, so should ordinary citizens.
Core Idea
The Fourth Amendment is about protecting citizens from government intrusion. In the 1700s, that meant soldiers kicking down doors to seize papers. Today, it means preventing government or corporations from peeking into your phone, tracking your location, or collecting your private data without due process.
Discussion Question:
Do you think the Fourth Amendment is strong enough to protect privacy in the digital age? Should phone data, internet history, and GPS tracking be treated the same way as “papers and effects”?