From the article:
Privacy . . . the right to be free from governmental interference . . . a law enforcement officer’s authority to investigate crimes . . . the government’s interest in investigating conduct that is not necessarily criminal—the Fourth Amendment affects all these issues . . . One U.S. Supreme Court case, Katz v. United States, has had a particularly important impact on the relationship between privacy and government authority under the Fourth Amendment, establishing the basic test for determining whether a person’s interest in privacy is sufficient to warrant Fourth Amendment protection. This and later cases decided by the Court—as well as federal and state legislation that expands on the basic protections afforded by the Fourth Amendment—are the focus of this article.
