The Fourth Amendment applies to the seizure and subsequent civil forfeiture of property following a warrantless stop and search. The Fourth Amendment to the U.S. Constitution prohibits unreasonable searches and seizures.Fourth Amendment Explained. The right of the people to be secure in their persons, houses, papers, and effects, against unreasonable searches and seizures, shall not be violated. First Amendment Bearing on Probable Cause and Particularity. Property Subject to Seizure. You must fill out and submit this form with each new action. The other suffers from encephalopathy and a seizure disorder. United States Court of Appeals, Eleventh Circuit. Alfred BARR, Plaintiff–Appellant,. v.