This Fourth Amendment activity is based on the landmark Supreme Court case Brendlin v. California, dealing with search and seizure during a traffic stop.The right of the people to be secure in their persons, houses, papers, and effects, against unreasonable searches and seizures, shall not be violated. The Fourth Amendment prohibits the United States government from conducting "unreasonable searches and seizures. AMENDMENT 4—SEARCHES AND SEIZURES have been reaffirmed directly in a Fourth Amendment case. The Fourth Amendment does not give individuals an absolute right to privacy; neither does it prohibit all searches. In general, most warrantless searches of private premises are prohibited under the Fourth Amendment, unless a specific exception applies. The Fourth Amendment's rule against unreasonable search and seizures means that police may not search you or your property unless one of the following is true:. These protections are grounded in state law and the Fourth Amendment to the U.S. Constitution. The Fourth Amendment to the U.S. Constitution protects individuals from unreasonable searches and seizures.