According to the Fourth Amendment to the U.S. Constitution a police officer must have a "reasonable suspicion" to pull you over.Read about the most examples
Differences Between Reasonable Suspicion and Probable Cause
Oregon officers can no longer ask random questions during traffic stops. An attorney hopes more states will follow
The Truth About Police Conduct: Can They Lie About Traffic Stops?
Why Many Police Traffic Stops Turn Deadly - The New York Times
The Protect Act aims to reduce racial profiling
How Long Is Too Long For A Traffic Stop
Reasonable Suspicion For a Traffic Stop in California
9th Circuit weighs in on passenger rights in a traffic stop
What Should You Expect at a California Traffic Stop?
Police Stops
Stop-and-Frisk in California – When are cops allowed to do it?