Here are a list of precedents for the case.
California v. Ciraolo (1986): A naked-eye police inspection of the backyard of a house from a fixed wing aircraft at 1,000 feet was not a search.
Katz v. U.S. (1967): What a person knowingly exposes to the public, even in his own house or office, is not a subject of Fourth Amendment protection.
Camara v. Municipal Court (1967): The basic purpose of the Fourth Amendment is to safeguard the privacy and security of individuals against arbitrary invasions by governmental offcials.
Jones v. U.S. (1960): The defendant must bear the burden of proving that his expectation of privacy was a reasonable one, and thus that a search within the meaning of the Fourth Amendment even took place.