What Is Due Process
Due process is the rule that the government cannot take a person’s life, liberty, or property without fair procedures and legal limits. It protects you whenever the government tries to lock you up, deport you, take your property, or cut off a benefit you depend on. It is the reason the government has to follow the rules before it acts against you, not after.
The promise lives in two parts of the Constitution. The Fifth Amendment (1791) binds the federal government, and the Fourteenth Amendment (1868) binds the states. They guarantee the same thing in nearly identical words. Our 5th Amendment explainer covers that amendment’s other four protections, from grand juries to the right to stay silent.
No person shall be… deprived of life, liberty, or property, without due process of law.
Fifth Amendment (1791)
Nor shall any State deprive any person of life, liberty, or property, without due process of law.
Fourteenth Amendment (1868)
Due process comes in two kinds. Procedural due process is fair procedure before the government acts: notice, a fair hearing, and a neutral decision-maker. Substantive due process means some rights are so fundamental the government cannot take them even with fair procedure. The first kind is accepted across the spectrum. The second is the contested half.
Key facts
- The Constitution says “any person,” not “citizen.” The Supreme Court said so in Yick Wo v. Hopkins in 1886.
- How much process is due depends on the stakes, under the test in Mathews v. Eldridge (1976). Higher stakes, more process.
- People facing deportation are owed due process, the Supreme Court held in A.A.R.P. v. Trump (2025).
- Due process is about fair procedure. Equal protection, also in the Fourteenth Amendment, forbids discrimination.
- Gideon v. Wainwright (1963) gives poor criminal defendants a free lawyer. Immigration court has no such guarantee.
If the government is acting against you now
Open the situation closest to yours. This is general information, not legal advice. The Immigration Advocates Network directory lists free and low-cost immigration lawyers by state.
Immigration agents are questioning or holding me
- Stay calm and do not resist. You have the right to stay silent and to ask for a lawyer. Say you want one, then stop talking.
- If you fear harm in the country you would be sent to, say so clearly. In fast-track removal, an officer must then refer you to an asylum officer.
- If you have lived in the United States for two years or more, say so and show proof if you have it. It can keep you out of fast-track removal.
- Find free or low-cost help in the Immigration Advocates Network directory.
A June 2026 appeals ruling says officers do not have to ask about your time here, so you have to raise it. See removal without a hearing.
Someone I know was detained by ICE
- Find where they are held with ICE's Online Detainee Locator, using their name and country of birth or their A-number.
- Call the National Immigrant Justice Center detention line or a lawyer from the Immigration Advocates Network directory.
- Gather papers that show how long they have lived here and any past court orders protecting them.
- Ask the lawyer whether a habeas corpus petition fits, especially if they are held without a bond hearing.
A government benefit is being cut off
- Read the notice for the reason and the appeal deadline, and keep a copy.
- Ask for a hearing in writing before the deadline. For Medicaid, asking before the cutoff date usually keeps coverage going while you appeal.
- Bring records that answer the stated reason, and ask to see the file the agency relied on.
The Supreme Court required a hearing before welfare is cut off in Goldberg v. Kelly. Medicaid's rule is 42 CFR 431.230.
My child is being suspended from a public school
- Ask the school what your child is accused of and what evidence it has.
- Make sure your child gets to tell their side before the suspension starts, unless there is an immediate safety risk.
- For an expulsion or a suspension longer than 10 days, ask in writing for the district's hearing procedures.
Public schools owe students notice and a chance to respond under Goss v. Lopez (1975).
What Procedural Due Process Requires
Procedural due process comes down to three things: notice of what the government plans to do, a real chance to respond, and a neutral person who decides. The ACLU puts it the same way: the government must tell you what is happening, give you a prompt chance to be heard, and put a neutral decision-maker in charge.
Here is what it looks like when the first three go missing. On April 17, 2025, hours after a federal judge in Texas denied their request for protection, Venezuelan men held there were served removal notices under the Alien Enemies Act and told they would be removed “tonight or tomorrow,” their lawyers alleged. The next afternoon, according to evidence the Supreme Court later cited, the government drove detainees from their detention facility to an airport and then back. Their lawyers filed emergency motions through the night. At 12:52 a.m. Eastern time on April 19, the Supreme Court ordered the government not to remove them.
A month later the Court explained why. Notice “roughly 24 hours before removal, devoid of information about how to exercise due process rights to contest that removal, surely does not pass muster,” it wrote in A.A.R.P. v. Trump.
Beyond that core, the details grow with the stakes. One list of possible protections comes from Judge Henry Friendly. Cornell’s Legal Information Institute says it “remains highly influential, as to both content and relative priority” and calls it a list of the kinds of procedures a person might claim, not a checklist. No single case requires all ten. A school suspension might need only the first three; a criminal trial needs nearly all of them.
Judge Henry Friendly's list of protections a due process claim can ask for, in his order of importance.
Source: Cornell Legal Information Institute, Wex entry on due process
The fights over deportation below are about the first three items on the list.
Who Due Process Protects
Due process protects everyone physically present in the country, not only citizens. The text is deliberate. The amendments say “any person” and “no person,” not “any citizen.” That word choice is the heart of the current fight over deportations, because it means an undocumented immigrant is still a “person” the government cannot act against without fair procedure.
The Supreme Court has said so for more than a century, in three rulings worth knowing by name.
Three Supreme Court rulings establishing that due process protects noncitizens.
Source: Oyez; Cornell LII
The practical meaning is direct. Whether someone entered the country legally or not, the government still has to follow fair procedure before it detains them or removes them. That principle is what the 2025 deportation cases turn on.
How Much Process You Get
Due process is not only a courtroom idea. It applies whenever the government acts against one person over something that matters, from a school suspension to a criminal charge. The Supreme Court decides how much process is due with the Mathews test, which scales the procedure to the stakes.
The more a person stands to lose, the more process comes before the loss. Each rung below is a Supreme Court case or statute that set the process for one kind of loss.
What the government owes you before each kind of loss
- Suspended from a public school for 10 days or less Notice of the charges and a chance to tell your side
Goss v. Lopez (1975). The school must explain its evidence if the student denies the charge, usually before the suspension starts.
- Fired from a tenured public job A chance to respond before; a full hearing after
Cleveland Board of Education v. Loudermill (1985). The worker gets notice, an explanation of the evidence, and a chance to answer before the firing.
- Disability benefits cut off A written review before; a full hearing after
Mathews v. Eldridge (1976). Medical disputes can usually be judged on paper, the Court held, so the live hearing can wait.
- Welfare benefits cut off A full hearing before the cutoff
Goldberg v. Kelly (1970). A family living on welfare may have nothing else to eat on while it waits, so the hearing comes first.
- Deported from the United States A hearing before an immigration judge
Required by statute for regular removal (8 U.S.C. 1229a). The person may bring a lawyer, but the government does not pay for one.
- Charged with a crime A trial, proof beyond a reasonable doubt, and a free lawyer
In re Winship (1970) set the proof standard, and Gideon v. Wainwright (1963) guaranteed counsel for defendants who cannot pay.
| Step | What due process requires | How much process comes first |
|---|---|---|
| Suspended from a public school for 10 days or less. Goss v. Lopez (1975). The school must explain its evidence if the student denies the charge, usually before the suspension starts. | Notice of the charges and a chance to tell your side | A quick exchange |
| Fired from a tenured public job. Cleveland Board of Education v. Loudermill (1985). The worker gets notice, an explanation of the evidence, and a chance to answer before the firing. | A chance to respond before; a full hearing after | Some process first, a full hearing later |
| Disability benefits cut off. Mathews v. Eldridge (1976). Medical disputes can usually be judged on paper, the Court held, so the live hearing can wait. | A written review before; a full hearing after | Some process first, a full hearing later |
| Welfare benefits cut off. Goldberg v. Kelly (1970). A family living on welfare may have nothing else to eat on while it waits, so the hearing comes first. | A full hearing before the cutoff | A full hearing before the loss |
| Deported from the United States. Required by statute for regular removal (8 U.S.C. 1229a). The person may bring a lawyer, but the government does not pay for one. | A hearing before an immigration judge | A full hearing before the loss |
| Charged with a crime. In re Winship (1970) set the proof standard, and Gideon v. Wainwright (1963) guaranteed counsel for defendants who cannot pay. | A trial, proof beyond a reasonable doubt, and a free lawyer | A full hearing before the loss |
Sources: Cornell Legal Information Institute opinions in Goss v. Lopez, Cleveland Bd. of Ed. v. Loudermill, Mathews v. Eldridge, Goldberg v. Kelly, and In re Winship; 8 U.S.C. 1229a.
Deportation sits near the top of the ladder, and that is where the fight is. Regular removal requires a hearing before an immigration judge. Expedited removal and the Alien Enemies Act skip it, and the cases below turn on whether that is allowed.
From Magna Carta to Dobbs
Due process is one of the oldest ideas in the law, and its story runs from a medieval English charter to a 2022 abortion ruling. It began in 1215 as a promise that the king would follow the law. The Constitution adopted it in 1791 and extended it to the states in 1868. Between 1963 and 1976 the Court built out its procedural side, and in 2015 and 2022 it expanded and then narrowed its substantive side.
- Magna Carta, "law of the land" King John seals the charter. Its 1297 version promises no free man is punished except "by lawful judgement of his peers or by the law of the land."
- Fifth Amendment ratified The federal government cannot take life, liberty, or property without due process.
- Fourteenth Amendment ratified The same guarantee now binds the states, and protects "any person."
- Gideon guarantees a lawyer Due process requires appointed counsel for poor defendants in criminal cases.
- Goldberg requires a hearing The government must hold a hearing before cutting off welfare benefits.
- Mathews sets the balancing test How much process is due depends on the stakes, the risk of error, and the government interest.
- Obergefell protects marriage Substantive due process protects the right of same-sex couples to marry.
- Dobbs narrows the branch The Court overrules Roe, holding abortion is "not deeply rooted" in history and tradition.
Sources: National Archives (Magna Carta exhibit and translation of the 1297 version); Cornell LII opinions in Gideon, Goldberg, Mathews, Obergefell and Dobbs.
The arc of due process, 1215-2022: 1215: Magna Carta, "law of the land" (King John seals the charter. Its 1297 version promises no free man is punished except "by lawful judgement of his peers or by the law of the land."). 1791: Fifth Amendment ratified (The federal government cannot take life, liberty, or property without due process.). 1868: Fourteenth Amendment ratified (The same guarantee now binds the states, and protects "any person."). 1963: Gideon guarantees a lawyer (Due process requires appointed counsel for poor defendants in criminal cases.). 1970: Goldberg requires a hearing (The government must hold a hearing before cutting off welfare benefits.). 1976: Mathews sets the balancing test (How much process is due depends on the stakes, the risk of error, and the government interest.). 2015: Obergefell protects marriage (Substantive due process protects the right of same-sex couples to marry.). 2022: Dobbs narrows the branch (The Court overrules Roe, holding abortion is "not deeply rooted" in history and tradition.).
1215: On June 15, 1215, King John sealed Magna Carta, the National Archives explains. It promised that no free man would be punished except “by lawful judgement of his peers or by the law of the land,” words kept in the 1297 version the Archives translates. That phrase became the seed of due process in English and then American law, and of the broader idea our rule of law explainer traces.
1791: The Fifth Amendment put the guarantee into the Constitution, binding the new federal government. It said no person could be deprived of life, liberty, or property without due process of law.
1868: The Fourteenth Amendment extended the same words to the states after the Civil War. Through the next century the Court used its Due Process Clause to apply most of the Bill of Rights to the states, a process lawyers call incorporation. Our 14th Amendment explainer charts how long each right waited.
1963: In Gideon v. Wainwright the Court held that due process requires the government to provide a lawyer to a criminal defendant who cannot afford one.
1970: In Goldberg v. Kelly the Court held that the government must hold a hearing before it cuts off welfare benefits a family relies on, a landmark for procedural due process.
1976: In Mathews v. Eldridge the Court set the test still used today, balancing the private interest, the risk of a wrong decision, and the government’s interest to decide how much process is due.
2015: In Obergefell v. Hodges the Court held that substantive due process protects the right of same-sex couples to marry, building on Griswold v. Connecticut (1965) on contraception and Lawrence v. Texas (2003) on same-sex intimacy.
2022: In Dobbs v. Jackson the Court overruled Roe v. Wade (1973), holding that abortion is “not deeply rooted in the Nation’s history and traditions.” The ruling narrowed the substantive branch and sharpened a long-running debate over it.
Due Process and Deportation Now
The sharpest due process fight today is over deportations carried out without a hearing. In March 2025 the government used a 1798 wartime law to fly men to a foreign prison with no hearings, and it deported a man with a court order protecting him by what it admitted was a mistake. Courts have ruled against the government on notice, but whether it can skip the hearing altogether is still in the courts as of October 2026.
Start with the law the government used. On March 15, 2025, the administration invoked the Alien Enemies Act of 1798 against the Venezuelan gang Tren de Aragua. The White House said 137 people were sent to El Salvador’s CECOT prison under that law (NPR), and none had a hearing to contest the gang label.
The Supreme Court stepped in twice in 2025, and what it decided is narrower than most headlines. Both rulings were about notice and the chance to seek review. Neither decided whether the 1798 law allows the removals at all, and that question is still open.
The Alien Enemies Act cases: what each court decided, and what is still pending.
Source: SCOTUS opinions 24A931 and 24A1007; NPR; ACLU
The December ruling is the one that tests whether due process means anything after the fact. Chief Judge James Boasberg wrote that “this class was denied their due-process rights” and required the government to make hearings possible, either by bringing the men back or by letting them pursue remedies from abroad, NPR reported. By then the men had been sent on to Venezuela in a prisoner exchange. The full D.C. Circuit heard a separate question on September 29, 2026, and has not ruled: whether officials should face criminal contempt for defying the judge’s March 2025 order to halt the flights.
The human cost of skipping the hearing is clearest in one case. Kilmar Abrego Garcia, who came to the United States from El Salvador as a teenager and has lived in Maryland with his wife and children since at least 2019 (SCOTUSblog), had a 2019 immigration-court order, called withholding of removal, that barred his deportation to El Salvador. ICE arrested him on March 12, 2025, and deported him to CECOT on March 15. The Justice Department admitted it was an administrative error.
The case has not ended. After the Supreme Court ordered the government to facilitate his return, he was brought back in June 2025 and indicted in Tennessee on human trafficking charges. Judge Waverly Crenshaw dismissed those charges on May 22, 2026 as a vindictive prosecution, and the Justice Department appealed in June. The government now wants to deport him to Liberia rather than Costa Rica, where he has agreed to go. Judge Paula Xinis has blocked that, and in August 2026 the Fourth Circuit denied the government’s motion to dissolve her injunction. He is living with his family in Maryland.
Two related cases are covered in our briefs: a Columbia graduate student held for months without charges after a campus protest, and a federal appeals ruling on Texas arresting and deporting people on its own.
Removal Without a Hearing
Most people facing deportation get a hearing before an immigration judge. A faster track called expedited removal skips it: an immigration officer orders the removal, a supervisor signs off, and the person can be gone in days. Congress created it in 1996, and for most of its history it applied near the border.
That changed in January 2025, when DHS expanded expedited removal to the full limit the law allows. It now reaches anyone, anywhere in the country, who was not admitted or paroled and cannot prove two years of continuous presence.
| Regular removal | Expedited removal | |
|---|---|---|
| Who orders it | An immigration judge, after a hearing | An immigration officer, with a supervisor's approval |
| Chance to respond | A hearing with evidence and witnesses | A sworn statement to the officer |
| Appeal | Board of Immigration Appeals, then a federal appeals court | None, except a judge's review if an asylum officer rejects a fear claim |
| How long it takes | Can take years | Often a few days |
| Who it covers since January 2025 | Everyone not placed in expedited removal | People not admitted or paroled who cannot prove two years here |
Sources: D.C. Circuit, Make the Road New York v. Mullin (2026); 8 U.S.C. 1229a.
A federal appeals court let the expansion take effect. A district court paused it in 2025, finding it likely violated due process. On June 23, 2026, a divided D.C. Circuit panel vacated that pause, and the expansion is in effect.
The ruling turned on which test measures “how much process is due.” That choice decides the outcome of many deportation cases, and it has shifted.
| Mathews v. Eldridge (1976) | Mullane v. Central Hanover (1950) | |
|---|---|---|
| The question | Would more procedure cut the risk of a wrong decision enough to justify the cost? | Was the notice reasonably likely to reach the person and give a chance to object? |
| What a court can order | Added safeguards, such as clearer forms, more time, or access to a lawyer | Nothing beyond notice and a chance to respond that are adequate |
| Who used it in 2025-26 | The district court that paused the expansion | The Supreme Court in the Alien Enemies Act cases, then the D.C. Circuit |
Sources: D.C. Circuit, Make the Road New York v. Mullin (2026); Cornell Legal Information Institute.
Judge Justin Walker wrote for the majority that due process does not require the government “to explain how the individual might prevail.” So officers need not ask people whether they have lived here two years, even though that fact alone takes them out of expedited removal. Judge Robert Wilkins agreed that Mullane applies but dissented, finding the plaintiffs likely to win under it. The practical result is that the person has to raise the two years, with proof, on the spot.
The right to a lawyer works differently here. Deportation is a civil case, so Gideon’s free lawyer does not apply. The law gives people in immigration court the privilege of being represented “at no expense to the Government” (8 U.S.C. 1229a), so they have a lawyer only if they can find or afford one.
Detention without a bond hearing raises the same question from another side. How the courts are handling it is covered on our habeas corpus and Laken Riley Act pages.
Where Due Process Does Not Reach
Due process is a limit on government, and it has edges. Knowing them keeps a real violation from being lost among claims that will not hold up.
Private employers, schools, and platforms. Due process applies only to government action. A private company that fires you or a private college that expels you does not owe you constitutional due process, though a contract or a state law may give you similar protections, as Cornell’s Legal Information Institute explains.
Laws that apply to everyone. No one gets a personal hearing before a legislature raises taxes or passes a general rule. The Supreme Court drew that line in Bi-Metallic Investment Co. v. State Board of Equalization (1915). Due process applies when the government acts against a person on individual grounds, even when many people are affected.
Benefits you have no claim to. Due process protects “property,” and the Court has defined that to include things state law entitles you to keep, such as a tenured job, a license, or enrolled welfare benefits. A job held at will, or a contract that simply ran out, usually carries no right to a hearing.
A lawyer in civil cases. Outside criminal trials, the Constitution rarely guarantees a free lawyer. That is why immigration detainees, who can lose their home and their country, often face a government attorney alone.
The Fight Over Substantive Due Process
Almost no one disputes that procedural due process exists. The fights over it are about how much a person gets, as the deportation cases above show. The deeper argument is over substantive due process, the idea that some rights are so fundamental the government cannot take them even with fair procedure.
Supporters say the substantive branch protects rights the Constitution does not list by name, such as privacy and marriage. A Texas Law Review essay on Madiba Dennie’s defense of the doctrine points to the Ninth Amendment, which protects rights not specifically listed, and to Loving v. Virginia, where the Court found a fundamental right to interracial marriage in the Due Process Clause.
Critics, mostly originalists, say the clause guarantees fair process, not a license for judges to strike down laws based on their content. Justice Clarence Thomas, borrowing a line from Justice Antonin Scalia, wrote in 2012 that the Due Process Clause is not a “secret repository of substantive guarantees against ‘unfairness’” (Perry v. New Hampshire, concurring). In his concurrence in Dobbs in 2022, Thomas urged the Court to “reconsider all of this Court’s substantive due process precedents, including Griswold, Lawrence, and Obergefell,” as the ABA Journal reported.
Thomas’s call was a concurrence, written for himself, not the opinion of the Court. When a petition formally asked the Court to overrule Obergefell, the justices turned it down on November 10, 2025. Griswold, Lawrence, and Obergefell remain good law as of October 2026.
Frequently Asked Questions
Can the government suspend due process?
No. The Fifth and Fourteenth Amendments contain no exception for emergencies. The Constitution lets Congress suspend a different right, habeas corpus, only during a rebellion or invasion when public safety requires it, and even that would not end the duty to give fair procedure.
Did the Supreme Court rule that the Alien Enemies Act deportations were illegal?
No. In 2025 the Court ruled only that people must get real notice and a chance to seek habeas review before removal. It never decided whether the 1798 law authorizes the removals. A district judge ruled in December 2025 that the 137 men sent to El Salvador were denied due process, and that ruling is on appeal as of October 2026.
Is due process the same as equal protection?
No. Both are in the Fourteenth Amendment, but they do different jobs. Due process is about fair procedure before the government takes your life, liberty, or property. Equal protection forbids the government from discriminating against people.
Did Dobbs end substantive due process?
No. Dobbs overruled Roe v. Wade in 2022 and narrowed the substantive branch, but it did not abolish it. Justice Thomas urged the Court to reconsider Griswold, Lawrence, and Obergefell in a concurrence written for himself alone. Those rulings remain good law as of October 2026.
What You Can Do
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If you face removal, get a lawyer before you answer questions about your case. The Immigration Advocates Network directory lists free and low-cost help by state. If you have lived in the United States for two years or more, keep documents that prove it where your family can find them, because an officer does not have to ask.
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If someone you know is detained, act fast. Find them through ICE’s online detainee locator, connect them with a lawyer, and ask the lawyer about a habeas corpus petition if they are held without a hearing.
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Ask Congress to repeal the Alien Enemies Act. The Neighbors Not Enemies Act (H.R. 630, S. 193) would repeal the 1798 law. Both versions have sat in committee since January 2025, so ask your members whether they are cosponsors.
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Correct the record when the cases come up. The Supreme Court has not approved the Alien Enemies Act removals; it ruled only on notice. The tables above are built to be shared.
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Write your members of Congress asking them to require a hearing before a judge before anyone is deported. Use the letter and call script below.