The Fourth, Sixth, or Eighth Amendment The fourth amendment protects people against unreasonable searches and seizures. For example, a police officer cannot arrest someone without a warrant or probable cause, nor can they take your home or personal property without a valid reason. A real-world example of where citizens' rights under the Bill of Rights may not be guaranteed would be when traveling outside the United States. The Aviation and Transportation Security Act was enacted after the attacks on 9/11/2001, which required "screening conducted by federal officials, 100 percent checked baggage screening..." (Oh, 2017). It is no longer 100% checked bags, but there are random checks of your personal property