The right of the people to be secure in their persons, houses, papers, and effects, against unreasonable searches and seizures, shall not be violated. Simply stated, the Fourth Amendment is a hard check on police power.The Fourth Amendment prohibits the United States government from conducting "unreasonable searches and seizures. Keep in mind that the root of any Fourth Amendment question goes back to the Fourth Amendment's protection against unreasonable searches and seizures. The Fourth Amendment guarantees your right to privacy. The Fourth Amendment to the United States Constitution protects citizens' privacy. 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. For any investigative action that involves entering or remaining in a home, transporting a child for an interview, or removing a child from a parent's custody, He US and Texas Constitutions prohibit illegal search and seizure. Otherwise known as The Fourth Amendment of the United States Constitution.