This Fourth Amendment activity is based on the landmark Supreme Court case Brendlin v. California, dealing with search and seizure during a traffic stop.Search and seizure law originates from the Fourth Amendment of the United. States Constitution and Article 1 of the California Constitution. The Fourth Amendment's rule against unreasonable searches and seizures mean the police cannot search you or your vehicle unless one of the following is true. AMENDMENT 4—SEARCHES AND SEIZURES have been reaffirmed directly in a Fourth Amendment case. The Legal Division Handbook relies essentially on the Supreme Court cases that have developed Fourth, Fifth and Sixth Amendment law. County of Sacramento v. Lewis: Official misconduct violates substantive due process only if it shocks the conscience or outrages a sense of decency. The Supreme Court usually considers Fourth Amendment cases starting with a basic question, "Was there a search or a seizure?