Fourth Amendment Exceptions

The Fourth Amendment to the Constitution states that people have the right "to be secure in their persons, houses, papers, and effects, against unreasonable searches and seizures," but the issue at hand here is whether this also applies to the searches of open fields and of objects in plain view and whether the fourth amendment provides protection over these as well. In order to reaffirm the courts' decision on this matter I will be relating their decisions in the cases of Oliver v. United States (1984), and California v. Greenwood (1988) which deal directly with the question of whether a person can have reasonable expectations of privacy as provided for in the fourth amendment with regards to objects in an open field or in plain view. The differentiation between open fields and private property must be made before one can proceed to form an opinion regarding the constitutionality of a warrantless search of an open field. Oliver v. United States is a case in which police officers, acting on reports from neighbors that a patch of marijuana was being cultivated on the Oliver farm, entered on to private property ignoring "No Trespassing" signs, and on to a secluded open portion of the Oliver property without a warrant, discovered the marijuana patch and then arrested Oliver without an arrest warrant. The Maine Judicial Court held that "No Trespassing" signs posted around the Oliver property "evinced a reasonable expectation of privacy," and therefore the court held that the "open fields" doctrine was not applicable to the Oliver case. Upon hearing the case, the Supreme Court argues that the special protections accorded by the fourth amendment do not extend to open fields. "Open fields do not provide the setting for those intimate activities that the Amendment is intended to shelter from government interference or surveillance." The court refers to the case of Hester v. United States (1924) which set the precedent for "open field cases" and interprets