A crucial question of Fourth Amendment law has recently divided courts: When government agents conduct a digital scan through a massive database, how much of a "search" occurs? The issue pops up in ...

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 ...

How long can the government keep your property after lawfully seizing it? According to the D.C. Circuit in a recent decision, as long as the continued possession is still reasonable under the Fourth ...