The right of the people to be secure in their persons, houses, papers, and effects, against unreasonable searches and seizures, shall not be violated. Read on to find out how this critical law can make a difference in your criminal case.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; these constitutional protections fully apply to cell phone searches. The Bill of Rights is the first 10 Amendments to the Constitution. It spells out Americans' rights in relation to their government. The Ninth Circuit declined to rule whether the. Amendment Four to the Constitution was ratified on December 15, 1791. It protects the American people from unreasonable searches and seizures. The Fourth Amendment contains the only reference in the United States.