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 protects against unreasonable searches and seizures.It requires a warrant, based on probable cause, for searches. Search and Seizure: The 4th Amendment protects individuals from unreasonable searches and seizures. The Fourth Amendment chapter in the Student. Handbook covers investigative detentions, their length, and probable cause to arrest. Landlords and tenants in Orange City, Iowa are forced to open their doors to government officials without a warrant, simply because the property is a rental. The New York State Unified Court System offers free instruction booklets and forms for people starting a divorce. Amendment Four to the Constitution was ratified on December 15, 1791. It protects the American people from unreasonable searches and seizures.