The Fourth Amendment of the United States Constitution says that a citizen cannot be the subject of an unreasonable search or seizure without a warrant backed by probable cause. But in the Supreme Court case Katz v. U.S., the Court ruled that the Fourth Amendment applies only in cases where a person has a “reasonable expectation of privacy.” And it’s not always obvious when you have a reasonable expectation of privacy, at least by the court’s standards. Continue reading “The Expectation of Privacy”