"Under the Fourth and Fourteenth Amendments, an arresting officer may, without a warrant search a person validly arrested. â–«Statutory Requirements.The Fourth Amendment to the United States Constitution prohibits the federal government from conducting "unreasonable searches and seizures. 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 to the US Constitution protects against unreasonable governmental searches. The Fourth Amendment to the US Constitution protects against unreasonable governmental searches. Probable cause is present when the police officer has a reasonable belief in the guilt of the suspect based on the facts and information prior to the arrest. Under the Fourth Amendment, you are protected from unreasonable searches and seizures. October 2021, and these 13 October 2021 amendments are not yet reflected in the treatise. The Fourth Amendment protects individuals "against unreasonable searches and seizures," U.S. Const. amend.