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

The Supreme Court ruled that police conduct a Fourth Amendment search when they obtain a person’s detailed cellphone location ...

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 ...

The Fourth Amendment’s warrant requirement boasts plenty of exceptions, and the practitioners must routinely ask the U.S. Supreme Court to consider the parameters of these exceptions. Continuing the ...

I recently posted about the open fields doctrine of Fourth Amendment law, the rule that it is not a "search" under the Fourth Amendment for the government to trespass on to your open field. In my post ...

This essay in the print edition of Reason argues that courts should overturn the "open fields" doctrine of the Fourth Amendment: In a decision issued at the dawn of Prohibition, the Supreme Court ...

Police in Virginia located a suspect by demanding location-specific cell phone data from Google. Did that violate his constitutional rights? It’s been a few years since the Supreme Court heard a major ...

A recent New York court case upheld a murder conviction despite claims that DNA evidence used violated the defendant’s Fourth Amendment rights. The case highlights ongoing legal questions about ...