The Fourth Amendment requires a warrant premised upon probable cause in order to seize someone or search their person or home. The right of the people to be secure in their persons, houses, papers, and effects, against unreasonable searches and seizures, shall not be violated.In order for the Fourth Amendment to apply, the individual must have a reasonable expectation of privacy in the property or area searched. CPD now invites the community to review the new draft Police Encounters and the Fourth Amendment directives to provide feedback. Automobile Searches and Seizures. Four of the six Fourth Amendment cases last Term involved state law enforcement officers searching passenger cars for drugs. The 4th Amendment of the US Constitution protects citizens from searches without a warrant. The amendment in their own words. The Fourth Amendment of the U.S. Constitution protects people from random and arbitrary stops and searches. For individuals interested in a.