I recently saw a video of a man lying quietly on a public park bench during the day. Someone had called the police, claiming someone was sleeping. When the officer arrived, the man was awake, calm, ...

Lower courts are divided on the Fourth Amendment implications of a drug detection dog that jumps into a car on its own and then alerts to illegal drugs. I thought I would offer some thoughts on the ...

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 ...

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 ...

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 ...