The Fourth Amendment to the United States Constitution is part of the Bill of Rights. It prohibits unreasonable searches and seizures and sets requirements for issuing warrants: warrants must be issued by a judge or magistrate, justified by probable cause, supported by oath or affirmation, and must particularly describe the place to be searched and the persons or things to be seized.
Corporate personhood or juridical personality is the legal notion that a juridical person such as a corporation, separately from its associated human beings, has at least some of the legal rights and responsibilities enjoyed by natural persons. In most countries, a corporation has the same rights as a natural person to hold property, enter into contracts, and to sue or be sued.
The Bank Secrecy Act of 1970 (BSA), also known as the Currency and Foreign Transactions Reporting Act, is a U.S. law requiring financial institutions in the United States to assist U.S. government agencies in detecting and preventing money laundering. Specifically, the act requires financial institutions to keep records of cash purchases of negotiable instruments, file reports if the daily aggregate exceeds $10,000, and report suspicious activity that may signify money laundering, tax evasion, or other criminal activities.
The Omnibus Crime Control and Safe Streets Act of 1968 was legislation passed by the Congress of the United States and signed into law by President Lyndon B. Johnson that established the Law Enforcement Assistance Administration (LEAA). Title III of the Act set rules for obtaining wiretap orders in the United States. The act was a major accomplishment of Johnson's war on crime.
Substantive due process is a principle in United States constitutional law that allows courts to establish and protect substantive laws and certain fundamental rights from government interference, even if they are unenumerated elsewhere in the U.S. Constitution. Courts have asserted that such protections come from the due process clauses of the Fifth and Fourteenth amendments to the U.S. Constitution, which prohibit the federal and state governments, respectively, from depriving any person of "life, liberty, or property, without due process of law". Substantive due process demarks the line between those acts that courts hold to be subject to government regulation or legislation and those that courts place beyond the reach of governmental interference. Whether the Fifth or Fourteenth Amendments were intended to serve that function continues to be a matter of scholarly as well as judicial discussion and dissent. In 2022, Justice Clarence Thomas called on the Supreme Court to reconsider all of its rulings that were based on substantive due process.
A Due Process Clause is found in both the Fifth and Fourteenth Amendments to the United States Constitution, which prohibit the deprivation of "life, liberty, or property" by the federal and state governments, respectively, without due process of law.
Hiibel v. Sixth Judicial District Court of Nevada, 542 U.S. 177 (2004), is a United States Supreme Court case in which the Court held that a statute requiring suspects to disclose their names during a valid Terry stop does not violate the Fourth Amendment if the statute first requires reasonable suspicion of criminal involvement, and does not violate the Fifth Amendment if there is no allegation that their names could have caused an incrimination.
Wolf v. Colorado, 338 U.S. 25 (1949), was a United States Supreme Court case in which the Court held 6—3 that, while the Fourth Amendment was applicable to the states, the exclusionary rule was not a necessary ingredient of the Fourth Amendment's right against warrantless and unreasonable searches and seizures. In Weeks v. United States, 232 U.S. 383 (1914), the Court held that as a matter of judicial implication the exclusionary rule was enforceable in federal courts but not derived from the explicit requirements of the Fourth Amendment. The Wolf Court decided not to incorporate the exclusionary rule as part of the Fourteenth Amendment in large part because the states which had rejected the Weeks Doctrine had not left the right to privacy without other means of protection. However, because most of the states' rules proved to be ineffective in deterrence, the Court overruled Wolf in Mapp v. Ohio, 367 U.S. 643 (1961). That landmark case made history as the exclusionary rule enforceable against the states through the Due Process clause of the Fourteenth Amendment to the same extent that it applied against the federal government.
Florida v. Riley, 488 U.S. 445 (1989), was a United States Supreme Court decision which held that police officials do not need a warrant to observe an individual's property from public airspace.
Olmstead v. United States, 277 U.S. 438 (1928), was a decision of the Supreme Court of the United States, on the matter of whether wiretapping of private telephone conversations, conducted by federal agents without a search warrant with recordings subsequently used as evidence, constituted a violation of the target’s rights under the Fourth and Fifth Amendments. In a 5–4 decision, the Court held that the constitutional rights of a wiretapping target have not been violated.
United States v. Martinez-Fuerte, 428 U.S. 543 (1976), was a decision of the United States Supreme Court that allowed the United States Border Patrol to set up permanent or fixed checkpoints on public highways leading to or away from the Mexican border and that the checkpoints are not a violation of the Fourth Amendment.
Zurcher v. Stanford Daily, 436 U.S. 547 (1978), is a United States Supreme Court case from 1978 in which The Stanford Daily, a student newspaper at Stanford University, was searched by police who had suspected the paper to be in possession of photographs of a demonstration that took place at the university's hospital in April 1971. The Stanford Daily filed a suit claiming that under the protection of the First and Fourth Amendments of the Constitution, the warrants were unconstitutional and that the searches should have fallen under the context of subpoenas. The Supreme Court ruled against The Stanford Daily; however, Congress later passed the Privacy Protection Act of 1980, which provides additional protections against searches and seizures to the press and individuals who disseminate information to the public, unless the individual is suspected of a crime or a life-threatening situation is present.
Schmerber v. California, 384 U.S. 757 (1966), was a landmark United States Supreme Court case in which the Court clarified the application of the Fourth Amendment's protection against warrantless searches and the Fifth Amendment right against self-incrimination for searches that intrude into the human body. Until Schmerber, the Supreme Court had not yet clarified whether state police officers must procure a search warrant before taking blood samples from criminal suspects. Likewise, the Court had not yet clarified whether blood evidence taken against the wishes of a criminal suspect may be used against that suspect in the course of a criminal prosecution.
Ontario v. Quon, 560 U.S. 746 (2010), is a United States Supreme Court case concerning the extent to which the right to privacy applies to electronic communications in a government workplace. It was an appeal by the city of Ontario, California, from a Ninth Circuit decision holding that it had violated the Fourth Amendment rights of two of its police officers when it disciplined them following an audit of pager text messages that discovered many of those messages were personal in nature, some sexually explicit. The Court unanimously held that the audit was work-related and thus did not violate the Fourth Amendment's protections against unreasonable search and seizure.
United States v. Payner, 447 U.S. 727 (1980), is a United States Supreme Court case in which the Court reversed a district court's suppression of evidence in the criminal prosecution of an Ohio businessman charged with tax evasion. The case concerned both issues of criminal procedure and the application of the exclusionary rule derived from the Fourth Amendment. By a 6–3 margin the Court both reaffirmed its earlier rulings' holding that only the party whose Fourth Amendment protections may have been violated has standing to challenge the evidence seized in the search, and barred lower courts from exercising their supervisory power to exclude such evidence at the trial of third parties.
Breithaupt v. Abram, 352 U.S. 432 (1957), was a United States Supreme Court case in which the Court ruled that involuntary blood samples, taken by a skilled technician to determine intoxication, do not violate substantive due process under the Fourteenth Amendment of the United States Constitution. This case was only the second time the Court considered whether police could forcibly enter inside a suspect's body to extract evidence. Writing for a 6–3 majority, Justice Tom C. Clark argued that blood tests were necessary as a matter of public policy to ensure traffic safety on roads and highways, and that "modern community living requires modern scientific methods of crime detection." Chief Justice Earl Warren and Justice William O. Douglas both wrote dissenting opinions in which they argued that the involuntary blood sample taken in this case was "repulsive" and violated substantive due process.
In United States constitutional law, the penumbra includes a group of rights derived, by implication, from other rights explicitly protected in the Bill of Rights. These rights have been identified through a process of "reasoning-by-interpolation", where specific principles are recognized from "general idea[s]" that are explicitly expressed in other constitutional provisions. Although researchers have traced the origin of the term to the nineteenth century, the term first gained significant popular attention in 1965, when Justice William O. Douglas's majority opinion in Griswold v. Connecticut identified a right to privacy in the penumbra of the constitution.
United States v. Miller, 425 U.S. 435 (1976), was a United States Supreme Court that held that bank records are not subject to protection under the Fourth Amendment to the United States Constitution. The case, along with Smith v. Maryland, established the principle of the third-party doctrine in relation to privacy rights.
Hudson v. Palmer, 468 U.S. 517 (1984), is a United States Supreme Court case in which the Court held that prison inmates have no privacy rights in their cells protected by the Fourth Amendment to the United States Constitution. The Court also held that an intentional deprivation of property by a state employee "does not violate the Fourteenth Amendment if an adequate postdeprivation state remedy exists," extending Parratt v. Taylor to intentional torts.
United States v. Gratkowski, 964 F.3d 307, was a case in the United States Court of Appeals for the Fifth Circuit involving the Fourth Amendment implications of Bitcoin transactions.
