United States v. Lem Hoy
330 U.S. 724 · No. 585 · 1946 term · Vinson Court
Decided Apr 7, 1947 · argued Mar 14, 1947
Criminal procedure · Statutory construction of criminal laws: immigration
Majority opinion: Hugo Black
The voteMajority
9–09 in the majority, 0 in dissent
No dissent (9–0)
Reversed. United States won.
What this ruling means
Reversed: the Supreme Court overturned the decision of the California Southern U.S. District Court, and its own ruling ends the case.
United States was the petitioner, the side that asked the Supreme Court to review the case. “Won” means the Court gave that side the result it asked for.
From the Supreme Court Database. A justice who agreed with the result but not the reasoning counts in the majority.
Summary
The opening of the case’s Wikipedia article: what the case was about and what the Court held.
Wikipedia has no article on this case, so there is no summary.
Data notes
The text is Wikipedia’s (CC BY-SA 4.0), matched to the case by its citation, docket number or name and year, and is not checked against the opinion. The site keeps the article’s opening section, ending on its last full sentence. The one-sentence summary under the title is the Decisions list’s: Wikipedia’s own ruling sentence, or, tagged “AI-written”, one Claude wrote from this opening.
How the justices voted
Each justice who took part, placed by their Martin–Quinn ideology score for the 1946 term. Filled: the 9 in the majority. Hollow: the 0 in dissent. Colour is the party of the president who appointed them.
Majority(9)
Hugo BlackWrote the majority opinion
Frank MurphyJoined the majority
Wiley RutledgeJoined the majority
William DouglasJoined the majority
Stanley ReedJoined the majority
Frederick VinsonJoined the majority
Harold BurtonJoined the majority
Felix FrankfurterJoined the majority
Robert JacksonJoined the majority
Dissent(0)
- None.
Data notes
Each justice’s vote and what they wrote are from the justice-centered file of the Supreme Court Database. “Wrote a concurrence” means the justice sided with the majority and wrote separately; a justice who dissented in part is counted on the side they took overall. A justice who wrote nothing is listed as joining their side.
Positions are each justice’s Martin–Quinn score for the case’s term, the same scores as the Ideology page: negative is more liberal, positive more conservative. A score sums up a justice’s votes across the whole term, so it says where they usually sit, not why they voted as they did here. The median line is the Court’s median justice that term.
The parties
Who brought the case to the Court, who answered it, and how it got there.
- Petitioner
- United StatesUnited States
- Respondent
- Lem HoyPerson accused, indicted, or suspected of crime
- Reached the Court by
- Appeal (the Court was required to hear it)
Data notes
The names are the two sides of the case’s title. The description under each is the Supreme Court Database’s category for that party, in its own wording. The petitioner is the side that asked the Supreme Court to review the decision below. “Why it was taken” appears only when the majority opinion says lower courts disagreed or were unsure about the question; reasons that would fit any case (“to resolve the question presented”, “an important question”) are left out.
The law at issue
The law the Court was asked to apply, and the kind of power it used to decide.
- Provision
- 50 U.S.C. § 1355
- Kind of law
- Infrequently litigated statutes
- Decided by
- Statutory construction
Data notes
The Supreme Court Database codes the main constitutional provision, statute or court rule each case turned on, and the basis of the decision: judicial review of a federal or state law, interpreting a statute, supervising the lower courts, and so on. A case can rest on more than one. “Overruled” counts only where the majority opinion says so.
Timeline
What happened at the Court and how the case got there, newest first.
- Apr 7, 1947DecidedDecided · Decided 9–0: reversed. United States won.
- Mar 14, 1947ArguedArgued · Oral argument before the Court.
- Not datedTaken upTaken up · Reached the Supreme Court on appeal, which the Court had to hear.
- Not datedCourt belowCourt below · Began in and was decided by the California Southern U.S. District Court.
Data notes
From the Supreme Court Database: the court the case began in, the court whose decision the Supreme Court reviewed and what that court did, how the case came to the Court, and the dates of argument and decision. The database does not date the steps in the lower courts. Court names are the database’s.
Other decisions on the same issue
7 other argued cases since 1946 on statutory construction of criminal laws: immigration, newest first.
- United States v. Palomar-Santiago141 S. Ct. 1615May 24, 2021 · 141 S. Ct. 1615Criminal procedure9–0Unanimous band
- Luna Torres v. Lynch578 U.S. 452May 19, 2016 · 578 U.S. 452Criminal procedure5–36–3 band
- United States v. Juan Resendiz-Ponce549 U.S. 102Jan 19, 2007 · 549 U.S. 102Criminal procedure8–18–1 band
- United States v. Campos-Serrano404 U.S. 293Dec 20, 1971 · 404 U.S. 293Criminal procedure4–36–3 band
- United States v. Cores356 U.S. 405May 19, 1958 · 356 U.S. 405Criminal procedure6–36–3 band
- Sugden et ux. v. United States.351 U.S. 916Apr 30, 1956 · 351 U.S. 916Criminal procedure6–36–3 band
- United States v. Evans333 U.S. 483Mar 15, 1948 · 333 U.S. 483Criminal procedure9–0Unanimous band
Data notes
Every other orally argued case with a clear vote, from the 1946 term on, that the Supreme Court Database files under the same issue as this one. The database gives each case one issue from a list of about 270 (abortion, search and seizure of vehicles, the death penalty, and so on), whatever law it turned on.
Official record
Read the full opinion on Justia. Case data from the Supreme Court Database, Version 2026 Release 01, through the 2025 term.