Art. I, §9, cl. 3
Federal Bill of Attainder and Ex Post Facto Clause
No Bill of Attainder or ex post facto Law shall be passed.
This Clause forbids Congress from imposing legislative punishment on named or identifiable persons and from enacting retroactive criminal laws.
Bills of attainder
A bill of attainder is legislation that inflicts punishment on specific persons or an identifiable class without a judicial trial. The classic cases are Cummings v. Missouri and Ex parte Garland, which invalidated loyalty-oath laws after the Civil War, and United States v. Lovett, which invalidated an appropriations rider barring payment to named federal employees.
Modern doctrine asks whether a law identifies a target, imposes punishment, and lacks a judicial trial. United States v. Brown applied the rule to a statute barring Communist Party members from union office. Nixon v. Administrator of General Services supplied the modern punishment framework and upheld a statute preserving President Nixon's papers. Selective Service System v. Minnesota Public Interest Research Group applied that framework deferentially.
Ex post facto laws
The Ex Post Facto Clause applies only to penal laws, not ordinary civil legislation. Calder v. Bull identified the canonical categories: laws that criminalize previously innocent conduct, aggravate a crime, increase punishment, or alter rules of evidence to make conviction easier.
Later cases refine the categories. Collins v. Youngblood returned doctrine to Calder's categories after broader nineteenth-century formulations. Weaver v. Graham invalidated a retroactive reduction of prison gain-time credits. Carmell v. Texas invalidated a retroactive evidentiary change that made conviction easier. Peugh v. United States held that retroactive use of harsher sentencing guidelines can violate the Clause.
Civil measures and punishment
The Court often asks whether a nominally civil measure is punitive in purpose or effect. Kansas v. Hendricks upheld civil commitment of sexually violent persons. Smith v. Doe upheld retroactive sex-offender registration as civil and nonpunitive.
Originalist note
The bans target two founding-era fears: legislative trials and retroactive penal law. The original public meaning is narrow but forceful: legislatures may define crimes prospectively, but they may not adjudicate guilt or increase criminal consequences after the fact.
The Convention record shows the clause was contested on exactly the ground Calder v. Bull later settled. Elbridge Gerry and James McHenry moved to add the prohibition; Gerry argued it was more necessary at the national level than the state level "because the number of members in the former being fewer, they were on that account the more to be feared." Oliver Ellsworth thought the ex post facto half unnecessary because "there was no lawyer, no civilian who would not say that ex post facto laws were void of themselves," and James Wilson opposed inserting it at all, warning it would "proclaim that we are ignorant of the first principles of Legislation." The bill-of-attainder half passed unanimously; the ex post facto half passed 7-3-1. (Records of the Federal Convention, 2:375.)
The civil/criminal scope question was live from the start. On 29 August, John Dickinson told the Convention that, "on examining Blackstone's Commentaries, he found that the terms 'ex post facto' related to criminal cases only" and would not reach civil retrospective laws. On 14 September, George Mason moved to strike "nor any ex post facto law" because "it not sufficiently clear that the prohibition meant by this phrase was limited to cases of a criminal nature"; Gerry seconded it but wanted the prohibition extended to civil cases instead. The motion failed unanimously, leaving the clause as drafted — and Mason recorded his dissent the next day, warning that "there never was nor can be a legislature but must and will make such laws, when necessity and the public safety require them." Calder v. Bull (1798) later confirmed the criminal-only reading Dickinson stated at the Convention, over the objection Mason raised there.
Story's Commentaries (§§ 1338-39) reached the same conclusion by 1833, treating "bill of pains and penalties" as included within "bill of attainder," and confirming the "current of opinion and authority" already read the ex post facto ban as reaching criminal statutes only, even though "learned minds" had argued for the broader civil-inclusive reading Mason and Gerry pressed at the Convention.
A pre-Convention Virginia attainder: Edmund Randolph's account of Josiah Philips
Gerry's Convention-floor warning (above) that legislative attainder was "more necessary" against a smaller, more concentrated body of members reads as an abstraction unless set against an actual pre-Convention instance. At the Virginia ratifying convention, Edmund Randolph — who had sat in the Federal Convention — gave the fullest founding-era first-person account in this wiki of exactly the practice the clause forbids, describing a Virginia legislative attainder he had personally set in motion as a young member of the House of Delegates during the Revolution:
"A man, who was then a citizen, was deprived of his life thus: from a mere reliance on general reports, a gentleman in the House of Delegates informed the house, that a certain man (Josiah Philips) had committed several crimes, and was running at large, perpetrating other crimes. He therefore moved for leave to attaint him; he obtained that leave instantly; no sooner did he obtain it, than he drew from his pocket a bill ready written for that effect; it was read three times in one day, and carried to the Senate... he was attainted very speedily and precipitately, without any proof better than vague reports. Without being confronted with his accusers and witnesses, without the privilege of calling for evidence in his behalf, he was sentenced to death, and was afterwards actually executed." — Edmund Randolph, Virginia Convention, 6 June 1788
Randolph called it "an example so horrid, that, if I conceived my country would passively permit a repetition of it, dear as it is to me, I would seek means of expatriating myself from it," and offered the episode — not an abstract fear of federal overreach — as his own reason for valuing the trial-by-jury guarantees the proposed Constitution did provide. Randolph's account does not name Art. I sec. 9 cl. 3 directly; the Virginia convention had not yet reached that clause when he spoke. It nonetheless matches, from an eyewitness inside the very legislature that did it, the exact abuse Gerry's floor argument and the clause's text address: legislative conviction of a named person without judicial trial.
Patrick Henry answers Randolph: the attainder defended, not condemned
The next day, Patrick Henry took up Randolph's account directly — by name — and reversed its moral, arguing the Philips attainder was not the abuse Randolph called it but a justified extrajudicial response to an outlaw beyond the reach of ordinary process:
"The honorable member has given you an elaborate account of what he judges tyrannical legislation, and an ex post facto law, (in the case of Josiah Philips.) He has misrepresented the facts. That man was not executed by a tyrannical stroke of power. Nor was he a Socrates. He was a fugitive murderer and an outlaw — a man who commanded an infamous banditti, and at a time when the war was at the most perilous stage. He committed the most cruel and shocking barbarities. He was an enemy to the human name. Those who declare war against the human race may be struck out of existence as soon as they are apprehended. He was not executed according to those beautiful legal ceremonies which are pointed out by the laws in criminal cases. The enormity of his crimes did not entitle him to it. I am truly a friend to legal forms and methods; but, sir, the occasion warranted the measure. A pirate, an outlaw, or a common enemy to all mankind, may be put to death at any time. It is justified by the laws of nature and nations." — Patrick Henry, Virginia Convention, 7 June 1788
key-insight
Henry and Randolph give this wiki its only direct, named disagreement between two Founders about the same historical episode's constitutional character — not a difference of doctrine but of fact and judgment about what happened in Philips's case and whether it warranted the process it received. Henry's "laws of nature and nations" theory treats an accused pirate or outlaw as outside the ordinary criminal-process guarantees entirely, a carve-out neither the clause's text nor any other source on this page recognizes. Notably, the roles are reversed from the two men's usual positions: Randolph, the Constitution's Federalist defender, cites the episode as an argument for the new trial-by-jury protections; Henry, the Constitution's leading Anti-Federalist critic, defends the very legislative attainder those protections would have forbidden.
John Marshall answers Henry: the Philips defense as evidence for a bill of rights
Three days after Henry defended the Philips attainder, John Marshall — thirteen years before he became the fourth Chief Justice — took up Henry's defense by name and reversed its moral a second time, treating the episode not as a justified exception but as exactly the kind of unchecked legislative power a bill of rights exists to forbid:
"Can we boast that our government is founded on these maxims? Can we pretend to the enjoyment of political freedom or security, when we are told that a man has been, by an act of Assembly, struck out of existence without a trial by jury, without examination, without being confronted with his accusers and witnesses, without the benefits of the law of the land? Where is our safety, when we are told that this act was justifiable because the person was not a Socrates?" — John Marshall, Virginia Convention, 10 June 1788
key-insight
Marshall's rebuttal does not engage Henry's "laws of nature and nations" theory on its own terms — he does not argue Philips was entitled to trial-by-jury protections despite being an outlaw; he argues the precedent of an unchecked legislature "striking a man out of existence" is itself the danger, regardless of Philips's individual guilt. This is the same move Randolph's original account made (above) — reasoning from the abuse of process, not from the target's culpability — restated independently by a different Federalist speaker after Henry's defense intervened.
Harrison and Nicholas reopen the dispute a third and fourth time
Later the same day, Mr. Harrison rose to defend the General Assembly's conduct against Randolph's and Marshall's characterizations — reported by Elliot only in the third person, since he "spoke so low that he could not be distinctly heard":
Mr. Harrison "observed, that the accusation of the General Assembly, with respect to Josiah Phillips, was very unjust; that he was a man who, by the laws of nations, was entitled to no privilege of trial." — Mr. Harrison, Virginia Convention, 10 June 1788 (Elliot's third-person summary)
George Nicholas answered Harrison, also reported in the third person, denying that an accused man's bad character can ever substitute for a trial:
Mr. Nicholas "observed, that the turpitude of a man's character was not a sufficient reason to deprive him of his life without a trial; that such a doctrine as that was a subversion of every shadow of freedom; that a fair trial was necessary to determine whether accusations against men's characters were well-founded or not; and that no person would be safe, were it once adopted as a maxim, that a man might be condemned without a trial." — George Nicholas, Virginia Convention, 10 June 1788 (Elliot's third-person summary)
key-insight
This exchange makes the Josiah Philips episode the most contested single factual dispute in this wiki's ratification-era record: four founders address it, and they do not converge. Randolph condemns the attainder as tyranny; Henry defends it as a justified response to an outlaw beyond ordinary process; Marshall attacks Henry's defense as itself dangerous precedent; Harrison defends the Assembly a second time on the same "laws of nations" ground Henry used; Nicholas answers Harrison a second time on the same fair-trial ground Randolph used. No side changes its position in response to the other's argument — the debate ends in the same disagreement it began with, over the same eleven-year-old episode.
Henry's Continental-paper-money argument, and Randolph's exception theory
Patrick Henry's 15 June review of Art. I sec. 9 (see Bill of Rights) reached the Ex Post Facto Clause with an argument distinct from the Josiah Philips dispute already on this page (above) — not whether a specific past attainder was justified, but whether the federal ban on retroactive law would itself work an injustice, by locking in the nominal value of depreciated Continental currency:
"If ex post facto laws had not been interdicted, they might also have been extended by implication at pleasure. Let us consider whether this restriction be founded in wisdom or good policy. If no ex post facto laws be made, what is to become of the old Continental paper dollars? Will not this country be forced to pay in gold and silver, shilling for shilling?" — Patrick Henry, Virginia Convention, 15 June 1788
Gov. Edmund Randolph answered the same day, applying the exception-theory method he stated generally for the Necessary and Proper Clause that day (see Necessary and Proper Clause) to this specific restriction — reading the ban as a carve-out from Congress's criminal-jurisdiction power rather than as a freestanding civil-retroactivity rule:
"The 3d restriction is, that no bill of attainder, or expost facto law, shall be passed. This is a manifest exception to another power. We know well that attainders and ex post facto laws have always been the engines of criminal jurisprudence. This is, therefore, an exception to the criminal jurisdiction vested in that body." — Gov. Edmund Randolph, Virginia Convention, 15 June 1788
Randolph closed the Continental-currency thread directly, later the same day, arguing the clause under debate one section over — Art. I sec. 10's identical state-level ban (see State Treaty, Coinage, and Contracts Clause) — reads "ex post facto" in its narrow, technical, criminal-only sense, foreclosing Henry's civil-debt reading at the source: "Ex post facto laws, if taken technically, relate solely to criminal cases; and my honorable colleague tells you it was so interpreted in Convention."
key-insight
Randolph's exception-theory reading here matches his own criminal-jurisdiction-only construction of "ex post facto," which this page's Convention-history section already traces to Dickinson's 29 Aug. 1787 floor statement and Calder v. Bull's later confirmation (above). Henry's paper-money argument does not dispute that narrow scope directly — he argues instead that even a criminal-only ex post facto ban has the civil side-effect of freezing Continental currency's nominal value, a distinct policy objection from Mason's and Gerry's Convention-floor push (above) to extend the ban to civil cases generally.
First Congress, 22 Feb. 1790: the Domestic Debt debate — ex post facto reasoning applied to Congress itself
Every source already on this page tests the Clause against state legislative action (the Josiah Philips attainder) or the Convention's own drafting. The First Congress's debate on discriminating among public-debt holders — paying original bondholders more than the speculators who had since purchased their securities at a discount — is the wiki's only record of a member pressing ex post facto reasoning directly against a federal bill under live debate, rather than against a past state act or a hypothetical. Mr. Smith (of South Carolina) read discrimination as retroactive punishment of a transaction the government itself had invited:
"The transference of public securities was lawful at the time these alienations were made; an attempt therefore to punish the transferees, is an attempt to make an ex post facto law, by making that unlawful which was lawful at the time it was done; it alters the nature of the transaction, and annexes the idea of guilt to that which, at the moment of commission, was not only perfectly innocent, but was explicitly authorized and encouraged by a public act of Congress." — Mr. Smith (of South Carolina), House of Representatives, 22 Feb. 1790
Smith paired the argument with the state Contracts Clause by analogy — "The Constitution restrains the states from passing any law impairing the force of contracts: a fortiori, is the legislature of the Union restrained?" — reading the two clauses as a single principle rather than two independent textual bars. James Madison answered on narrower ground, framing the dispute as one of historical equivalence rather than denying Smith's constitutional premise: "whether words could be devised that would place the new government more precisely in the same relation to the real creditors with the old." See State Treaty, Coinage, and Contracts Clause.
Relationships
- Governing Text
- Art. I sec. 9 cl. 3
- Key Cases
- Cummings v. Missouri, Ex parte Garland, United States v. Lovett, United States v. Brown, Nixon v. Administrator of General Services, Calder v. Bull, Collins v. Youngblood, Weaver v. Graham, Carmell v. Texas, Peugh v. United States, Smith v. Doe
- Limits
- legislative punishment, retroactive criminal liability, retroactive increases in punishment
- Source
- Constitution Transcription (National Archives), Annotated Constitution, Founders' Constitution
Sources
- Constitution Transcription (National Archives)
- Annotated Constitution
- Founders' Constitution — Records of the Federal Convention (2:375, 2:448, 2:617, 2:640); William Blackstone, Commentaries 4:373-79; Story, Commentaries §§ 1338-39
- Elliot's Debates (Vol. III) — Edmund Randolph, Virginia Convention, 6 June 1788: first-person account of the Josiah Philips legislative attainder
- Elliot's Debates (Vol. III) — Patrick Henry, Virginia Convention, 7 June 1788: Henry's direct rebuttal of Randolph's account, defending the Philips attainder as a justified extrajudicial response to an outlaw
- Elliot's Debates (Vol. III) — John Marshall, Virginia Convention, 10 June 1788: Marshall's rebuttal of Henry's defense; Mr. Harrison and George Nicholas, Virginia Convention, 11 June 1788: a third and fourth round of the same dispute
- Elliot's Debates (Vol. III) — Patrick Henry, Virginia Convention, 15 June 1788: an argument that the ban on ex post facto laws would freeze Continental currency's nominal value against depreciated-dollar debtors; Gov. Edmund Randolph's same-day exception-theory reply and his confirmation that "ex post facto" was interpreted in Convention as reaching criminal cases only
- Elliot's Debates (Vol. IV) — First Congress, House of Representatives, 22 Feb. 1790: the Domestic Debt debate, Mr. Smith's ex post facto and Contracts Clause argument against discriminating among public-debt holders, and Madison's historical-equivalence reply