The exclusionary rule prohibits the government from using illegally obtained evidence to prove a criminal defendant's guilt. 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 requires the government to obtain a warrant based on probable cause to conduct a legal search and seizure. The Fourth Amendment to the U.S. Constitution protects all U.S. citizens from unlawful search and seizure. 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 US Constitution protects against unreasonable governmental searches. Fourth Amendment Searches and Seizures ; Amdt4.3. 6.1Inspections ; Amdt4.3. The 4 th Amendment to the US Constitution guarantees freedom from unreasonable search and seizure.