
While the word privacy is not explicitly mentioned in the U.S. Constitution, the Supreme Court has long recognized an implied right to privacy derived from various amendments and constitutional protections. This implied right to privacy has been a foundational principle in many landmark court decisions, including Griswold v. Connecticut (1965), Roe v. Wade (1973), and Lawrence v. Texas (2003). The right to privacy generally refers to an individual's right to seclusion and freedom from government interference in their personal lives and decisions. However, the interpretation and scope of privacy have been the subject of ongoing legal debates and continue to evolve through subsequent Supreme Court decisions.
| Characteristics | Values |
|---|---|
| Privacy in the US Constitution | Not explicitly mentioned |
| Privacy in Constitutional Law | Recognized by the Supreme Court |
| Privacy in First Amendment | Recognized by Justice Louis D. Brandeis in Gilbert v. Minnesota (1920) |
| Privacy in Griswold v. Connecticut (1965) | Placed in a "penumbra" by Justice William O. Douglas |
| Privacy in Fourth Amendment | Protection from search without "probable cause" |
| Privacy in Fourteenth Amendment | Used to extend the right to privacy to same-sex couples |
| Privacy in Lower Courts | Used to limit the government's ability to disclose sensitive information |
| Privacy in Schools | Students have the right to remain silent if questioned by school officials |
| Privacy in Medical Decision-Making | Protected by the Supreme Court |
| Privacy in International Law | Over 185 national constitutions mention the right to privacy |
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What You'll Learn

Privacy in the US Constitution
While the word "privacy" is not explicitly mentioned in the US Constitution, the Supreme Court has long recognized an implied right to privacy as an outgrowth of protections for individual liberty. This implied right to privacy has been a source of many of the nation's most cherished and contentious rights, including the right to have an abortion, the right to refuse unwanted medical treatment, and the right to make intimate personal decisions without government interference.
The concept of a right to privacy first gained prominence in the US in 1890, when Warren and Brandeis published an article in the Harvard Law Review titled "The Right to Privacy." This article is often cited as the first implicit recognition of a right to privacy in the US. However, it wasn't until the 1965 case of Griswold v. Connecticut that the Supreme Court formally acknowledged a right to privacy. In this case, the Court ruled that the Constitution guarantees a right to privacy against government intrusion, derived from the "penumbras" or shadows cast by the First, Third, Fourth, Fifth, and Ninth Amendments.
The First Amendment, for example, protects the freedom to associate privately. The Third and Fourth Amendments safeguard the sanctity of private homes. The Fifth Amendment's guarantee against self-incrimination allows individuals to keep information private, and the Ninth Amendment reserves any rights not explicitly listed in the Constitution to the people. Together, these amendments create a zone of privacy that the government cannot violate.
In subsequent cases, the Supreme Court has continued to extend the right to privacy. In Eisenstadt v. Baird (1971), the Court ruled that the right to privacy in the context of contraception applies to unmarried couples as well, not just married ones. In Lawrence v. Texas (2003), the Court extended the right to privacy to same-sex couples engaging in sexual conduct. And in Roe v. Wade (1973), the Court held that the right to privacy includes a woman's decision to terminate her pregnancy, although this ruling was later overturned in Dobbs v. Jackson Women's Health Organization.
Despite the lack of explicit mention in the Constitution, privacy is a fundamental concept in US law and has been the subject of international debate, especially in the era of mass surveillance and technological advancements. Lower courts have also relied on the right of informational privacy to limit the government's ability to disclose sensitive personal information. While the exact scope of the right to privacy continues to evolve with new Supreme Court decisions, it remains a critical component of constitutional law in the US.
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Privacy in the First Amendment
While the word "privacy" is not explicitly mentioned in the US Constitution, the Supreme Court has, for half a century, recognised privacy as an outgrowth of protections for individual liberty. The right to privacy is the source of many of the nation's most cherished, contentious, and commonly used rights.
In Griswold v. Connecticut (1965), Justice William O. Douglas placed a right to privacy in a "penumbra" cast by the First, Third, Fourth, Fifth, and Ninth Amendments. The Supreme Court found that when one takes the penumbras together, the Constitution creates a "zone of privacy". This right to privacy was then narrowly used to find a right to privacy for married couples regarding the right to purchase contraceptives.
In privacy cases post-Griswold, the Supreme Court has typically relied upon Justice Harlan's concurrence, which found a right to privacy derived from the Fourteenth Amendment. In Roe v. Wade, the Court extended the right to privacy to encompass an individual's right to have an abortion, based on the Fourteenth Amendment's concept of personal liberty and restrictions upon state action. However, after the Dobbs decision, the Court overturned Roe v. Wade, and the right to abortion no longer falls under the right to privacy.
The right to privacy also protects the ability to have consensual sex without being sent to jail and buttresses the ability to marry regardless of race or gender. It is also key to a person's ability to keep their family together without undue government interference. Lower courts have relied on the right of informational privacy to limit the government's ability to disclose someone's sexual orientation or HIV status.
The First Amendment protection of privacy is strongest when the invasion of privacy occurs in the home or in other places where an individual has a reasonable expectation of privacy. For example, in Stanley v. Georgia (1969), the Court struck down a Georgia law prohibiting the possession of obscene materials in the home, stating that the First Amendment means that a state has no business telling a man, sitting alone in his house, what books he may read or what films he may watch.
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Privacy in the Fourth Amendment
The US Constitution does not explicitly mention the word "privacy". However, the Supreme Court has affirmed that several amendments, including the Fourth Amendment, create an implied right to privacy.
The Fourth Amendment establishes the right of the people to be secure against unreasonable searches and seizures, stating that:
> "The right of the people to be secure in their persons, houses, papers, and effects, against unreasonable searches and seizures, shall not be violated, and no Warrants shall issue, but upon probable cause, supported by Oath or affirmation, and particularly describing the place to be searched, and the persons or things to be seized."
This amendment ensures that law enforcement officials, such as the police, cannot search individuals or their property without "probable cause". Probable cause refers to a reasonable belief, supported by facts and circumstances, that a person has committed or is about to commit a crime. In this way, the Fourth Amendment protects individuals' privacy by safeguarding them from arbitrary or unjustified searches and seizures.
The concept of privacy in the Fourth Amendment has been interpreted and applied in various court cases. For example, in the 1969 case of Stanley v. Georgia, the Court struck down a Georgia law prohibiting the possession of obscene materials in the home. The Court recognised that individuals have a right to privacy in their homes and can possess and consume whatever materials they choose without government interference.
Additionally, the Fourth Amendment's protection against unreasonable searches and seizures has been extended to include electronic communications and digital data. In the digital age, courts have interpreted the amendment to protect individuals' privacy in their electronic communications and personal information. This interpretation ensures that law enforcement agencies cannot arbitrarily access or search individuals' emails, text messages, or other electronic data without a warrant based on probable cause.
While the Fourth Amendment provides a strong foundation for privacy rights, it is not absolute. There are certain exceptions and limitations to this right. For example, in the case of public schools, students have been found to have fewer privacy rights due to the government's responsibility to maintain a safe and secure learning environment. The Supreme Court has ruled that measures such as metal detectors and undercover police officers in schools do not violate students' privacy rights, as they serve the greater purpose of ensuring safety.
In conclusion, while the word "privacy" is not explicitly mentioned in the US Constitution, the Fourth Amendment, along with other amendments, establishes an implied right to privacy. This right to privacy safeguards individuals from unreasonable searches and seizures, protecting their personal spaces, possessions, and electronic communications from unjustified government intrusion. However, it is important to recognise that this right is balanced against other considerations, such as public safety and the prevention of crimes.
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Privacy in the Fourteenth Amendment
The Fourteenth Amendment (Amendment XIV) to the United States Constitution, which came into force on July 9, 1868, is considered one of the most significant amendments. It addresses citizenship rights and equal protection under the law, ensuring that all citizens are guaranteed equal rights and protections by the government. This amendment was a response to issues affecting freed slaves following the American Civil War, and its enactment faced bitter resistance.
Section 1 of the Fourteenth Amendment formally defines United States citizenship and protects various civil rights from being abridged or denied by any state law or state action. It states that all persons born or naturalized in the United States and subject to its jurisdiction are citizens of the United States and the state in which they reside. This Citizenship Clause overruled the Supreme Court's Dred Scott decision, which stated that African Americans could not become citizens. The Fourteenth Amendment's egalitarian principles extended citizenship to all, regardless of race or ethnicity.
The Fourteenth Amendment also includes the "equal protection of the laws" clause, which has been central to many landmark Supreme Court cases. This clause ensures that no state can make or enforce any law that abridges the privileges or immunities of US citizens. It protects citizens' rights to life, liberty, and property, guaranteeing that no one can be deprived of these rights without due process of law. This amendment has been used to challenge racial discrimination in Brown v. Board of Education, prohibit interracial marriage bans in Loving v. Virginia, and protect reproductive rights in Roe v. Wade.
While the Fourteenth Amendment does not explicitly mention the word "privacy," the Supreme Court has interpreted it to include a right to privacy. In Whalen v. Roe (1977), the Court acknowledged the existence of protected privacy interests, including the right to avoid disclosing personal matters and the autonomy to make health decisions. In Griswold v. Connecticut (1965), the Court found a right to privacy, extending it to married couples' right to purchase contraceptives. In Eisenstadt v. Baird (1971), the Court further extended this right to unmarried couples, stating that privacy "inheres in the individual, not the marital couple."
Additionally, in Lawrence v. Texas (2003), the Court relied on the Fourteenth Amendment's guarantee of due process to protect the privacy rights of "persons of the same sex [who choose to] engage in... sexual conduct." The Court held that these individuals are "entitled to respect for their private lives." These cases demonstrate how the Fourteenth Amendment has been used to establish and protect privacy rights, even though the word "privacy" is not explicitly mentioned in the text of the amendment.
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Privacy in Supreme Court cases
The word "privacy" is not explicitly mentioned in the U.S. Constitution. However, the Supreme Court has, for half a century, interpreted it as an outgrowth of protections for individual liberty. This implied right to privacy has been the basis for many of the nation's most cherished and contentious rights.
In Griswold v. Connecticut (1965), the Supreme Court first recognized a constitutional right to privacy, a landmark decision that centered on the freedom of individuals to use contraception without government interference. The Court found that the Constitution creates a "'zone of privacy,'" derived from the personal protections expressly stated in the First, Third, Fourth, Fifth, and Ninth Amendments. This set a precedent for numerous privacy-related cases over the following decades.
In Roe v. Wade (1973), the Supreme Court used the right to privacy, as derived from the Fourteenth Amendment, to extend an individual's right to have an abortion. The Court held that the right of decisional privacy is based on the Constitution's assurance that people cannot be "deprived of life, liberty, or property, without due process of law." However, after the Dobbs decision, the Court overturned Roe v. Wade, removing abortion rights from the broader right to privacy.
In Eisenstadt v. Baird (1971), the Supreme Court extended the right to purchase contraceptives to unmarried couples, finding that "the constitutionally protected right of privacy inheres in the individual, not the marital couple."
In Lawrence v. Texas (2003), the Supreme Court used the Fourteenth Amendment to extend the right to privacy to "persons of the same sex [who choose to] engage in... sexual conduct."
The Supreme Court has also protected a person's freedom in medical decision-making under a combination of privacy and liberty rights. For example, in 1990, the Court concluded that "a competent person has a constitutionally protected liberty interest in refusing unwanted medical treatment."
The right to decisional privacy is not the only constitutionally protected form of privacy. There is also a right to "informational privacy," which allows individuals to limit the government's disclosure of information about them.
In a notable case, three Muslim Americans challenged the FBI's secret spying on them and their communities based on their religion, arguing that their religious freedom had been violated. The Supreme Court ruled that the government needs a warrant to access a person's cellphone location history.
Other cases involving privacy include those related to the use of artificial intelligence and facial recognition technology, as well as the potential violation of First Amendment rights through the banning of certain social media platforms.
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Frequently asked questions
No, the word privacy is not explicitly mentioned in the US Constitution.
The right to privacy is derived from a combination of other constitutional protections and rights. These include the First, Third, Fourth, Fifth, Ninth, and Fourteenth Amendments.
The "penumbra" theory, as outlined in Griswold v. Connecticut (1965), states that the Constitution guarantees a right to privacy against government intrusion via penumbras located in the founding text.
In 1990, the Supreme Court concluded that "a competent person has a constitutionally protected liberty interest in refusing unwanted medical treatment." This is an example of privacy rights protecting an individual's freedom in medical decision-making.
The future of privacy rights is uncertain. While privacy rights have been a source of contention in recent Supreme Court decisions, the Dobbs v. Jackson ruling in 2022 has brought attention to the fact that privacy rights are not explicitly mentioned in the Constitution, which may impact future decisions.

















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