Simon, a respected high school teacher, has a cousin who is infamous for his criminal activities. When Bob, a police officer, gets an alert about an absconding bank robber in the area where Simon lives, Bob raids Simon's house without a warrant. He conducts a thorough search of Simon's home for clues related to the robbery and the missing money, but he does not find anything against Simon. In this scenario, Bob has violated the _____ to the Constitution.