The right of the people to be secure in their persons, houses, papers, and effects, against unreasonable searches and seizures, shall not be violated. Is condemned in the Fifth Amendment; and compelling a man in a criminal case to be a witness against himself, which is condemned in the Fifth Amendment,.Law enforcement officers must understand the implications of obtaining confessions in violation of constitutional safeguards. Fourth Amendment — This amendment protects against unreasonable search and seizure, and requires probable cause for a warrant. The Fourth Amendment states in a nut shell that we shall be free from unreasonable searches and seizures. The Fourth Amendment states in a nut shell that we shall be free from unreasonable searches and seizures. Amendment Four to the Constitution was ratified on December 15, 1791. It protects the American people from unreasonable searches and seizures. The Fourth Amendment to the United States Constitution prohibits the federal government from conducting unreasonable searches and seizures. In those years, the presidential oath of office was administered on that day privately and then again in a public ceremony the next day, on Monday, January 21.