Complex sentence: The Fourth Amendment (Amendment IV) to the United States Constitution is the part of the Bill of Rights that guards against unreasonable searches and seizures, along with requiring any warrant to be judicially sanctioned and supported by probable cause.
Split into simpler sentences: The Fourth Amendment (Amendment IV) is an amendment to the United States Constitution and part of the Bill of Rights. It prohibits unreasonable searches and seizures and requires any warrant to be judicially sanctioned and supported by probable cause.