Flock cameras, collecting license plates and tracking movements over time, may fall into a constitutional gray zone.

On Tuesday, the U.S. Court of Appeals for the 7th Circuit ruled in favor of Ausencio Martinez, finding that Illinois State ...

We have seen this movie before, and the original version ended with a whimper, not a bang.

Kagan insists that the Fourth Amendment cannot be defeated by slicing invasions of privacy into pieces small enough to appear ...

The U.S. Supreme Court has issued a far-reaching decision on the constitutionality of a law enforcement tool that allows police to access the location histories of millions of cell phone users. In a ...

The U.S. Supreme Court's decision in Chatrie v. United States extends Fourth Amendment protection to geofence location data ...

Your cellphone continuously creates a durable and revealing digital trail that law enforcement can obtain with a warrant.

The Supreme Court finished its term by reinforcing the fact that consumers' online information is constitutionally protected ...

Last week the U.S. Supreme Court put up an important guardrail on the practice. It held that the government needs a warrant ...

In the era of mass surveillance, victories for privacy tend to be rare, making it that much more important to celebrate them when they occur. And, well, last month’s Supreme Court decision in Chatrie ...

Carter, a Fourth Amendment seizure case. The petition arrives on the heels of the court’s summary reversal in District of Columbia v. R.W., another Fourth Amendment seizure case from the capital. But ...

As we celebrate the 250th anniversary of the United States, let us renew our commitment to the Fourth Amendment. Our founders ...