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.4th Amendment Simplified. Fourth Amendment found easy acceptance in the Supreme Court30 and that acceptance controlled decision in numerous cases. The answer is the fourth amendment which prohibits unreasonable searches and seizures of property and individuals. It also prevents unlawfully seized items from being used as evidence against them in criminal cases. But cracks in the Fourth Amendment have weakened our personal security. The Fourth Amendment is among the first ten amendments that make up "The Bill of Rights". Its meaning is to protect against arbitrary arrests. Recently, however, Fourth Amendment law's objective façade has begun to crack.