The Fourth Amendment protects us from unreasonable search and seizures of our person, our house, our papers, and our effects. The Fourth Amendment prohibits the United States government from conducting "unreasonable searches and seizures.The right of the people to be secure in their persons houses papers and effects against unreasonable searches and seizures shall not be violated. Amendment Four to the Constitution was ratified on December 15, 1791. It protects the American people from unreasonable searches and seizures. The Rendell Center welcomes you to this video lesson on the 1st and 4th Amendment of the U.S. Constitution. That's why the Fourth Amendment protects "persons" from unreasonable searches and seizures. When are Searches and Seizures Unconstitutional? It also prevents unlawfully seized items from being used as evidence against them in criminal cases. Make sure you leave 5 minutes at the end of class to complete and collect evaluation forms.