The threshold question under the Fourth Amendment is whether a government search or seizure has occurred. A person’s property is “seized” when the government meaningfully interferes with a ...

the Fourth Amendment does not bar all searches and seizures. It bars only unreasonable searches and seizures. And the Government’s metadata collection program readily qualifies as reasonable und ...

The Fourth Amendment to the United States Constitution protects citizens from unreasonable searches and seizures and provides that warrants may only be granted upon findings of probable cause.

The Fourth Amendment protects Americans from “unreasonable searches and seizures” by the government. But the Supreme Court's interpretation of “unreasonable” has varied over time.

...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. The first half ...

The Fourth Amendment to the United States Constitution protects citizens from unreasonable searches and seizures and provides that warrants may only be granted upon findings of probable cause.