In light of concerns unique to the school environment, two significant modifications were made to the. The Fourth Amendment prohibits only "unreasonable searches and seizures." The key word is "unreasonable. California search and seizure laws protect you from unreasonable police intrusion into your home, vehicles, person and other property. We also offer an online portal where you can fill out and submit your petitions and all petition-related forms online. This primer outlines the state of the law on compelled decryption and offers a guide for defense lawyers on this important emerging issue.