The Fourth Amendment guards against unreasonable searches and seizures during multiple circumstances, including traffic stops. 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 to the United States Constitution prohibits the federal government from conducting "unreasonable searches and seizures. The Fourth Amendment protects against unreasonable searches and seizures. It requires a warrant, based on probable cause, for searches. The Fourth Amendment protects us from unreasonable search and seizures of our person, our house, our papers, and our effects. The Fourth Amendment protects against unreasonable searches and seizures. It requires a warrant, based on probable cause, for searches. But cracks in the Fourth Amendment have weakened our personal security. Citizens may not be tried on the same set of facts twice and are protected from self-incrimination (the right to remain silent).