Quote Originally Posted by Orin Kerr
In a new case, Alexander v. City of Round Rock, the U.S. Court of Appeals for the 5th Circuit considers the following question:

If the police pull over a driver and the driver indicates he will refuse to answer any police questions, does it violate the Constitution for the police to retaliate against the driver to punish him for refusing to answer their questions?

In the 5th Circuit’s decision, the court rules that:
  • Retaliation against the driver for refusing to answer police questions may involve acts that violate the Fourth Amendment.
  • Retaliation for refusal to answer police questions doesn’t clearly violate the First Amendment
  • and such retaliation doesn’t violate the Fifth Amendment.
Full case:
http://www.ca5.uscourts.gov/opinions...-50839-CV0.pdf

Florida attorney's recommendation:
http://www.brittlaw.net/duicheckpoint.html