Often, criminal defense matters implicate the Fourth Amendment. 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 4 th Amendment to the US Constitution guarantees freedom from unreasonable search and seizure. In Arizona, law enforcement must follow strict guidelines under the Fourth Amendment when conducting searches of your home, vehicle, or property. The Fourth Amendment protects individuals against unreasonable searches and seizures. Amendment 4:Security from unwarranted search and seizure. Amendment 5:Freedom for Life, Liberty and Property. Today the U.S. Constitution protects us against illegal searches and seizers of property under the Fourth Amendment. Tice Clark discerned several constitutional defects in the law. Amendment 4: Security from unwarranted search and seizure.