Case Citation
Legal Case Name

McBoyle v. United States Case Brief

Supreme Court of the United States1931Docket #1119260
283 U.S. 25 51 S. Ct. 340 75 L. Ed. 816 1931 U.S. LEXIS 861

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Case Brief Summary & Legal Analysis

General Brief
3 min read

tl;dr: The Supreme Court reversed a conviction for transporting a stolen airplane across state lines, finding that an airplane is not a “motor vehicle” under the National Motor Vehicle Theft Act because the term’s common meaning refers to land-based vehicles.

Legal Significance: A landmark case establishing the rule of lenity. Criminal statutes must provide fair warning in language commonly understood, and ambiguous terms will be construed narrowly, not extended to cover conduct beyond the statute’s clear scope.

McBoyle v. United States Law School Study Guide

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Case Facts & Court Holding

Key Facts & Case Background

The petitioner, William McBoyle, was convicted under the National Motor Vehicle Theft Act of 1919 for knowingly transporting a stolen airplane from Ottawa, Illinois, to Guymon, Oklahoma. The Act criminalized the interstate transportation of a stolen “motor vehicle.” The statute defined “motor vehicle” to include “an automobile, automobile truck, automobile wagon, motor cycle, or any other self-propelled vehicle not designed for running on rails.” McBoyle appealed his conviction, arguing that an airplane did not fall within the statutory definition of a “motor vehicle.” The Circuit Court of Appeals affirmed the conviction, holding that the phrase “any other self-propelled vehicle” was broad enough to include an aircraft. The Supreme Court granted certiorari to resolve the question of whether the Act applied to airplanes.

Court Holding & Legal Precedent

Issue: Does the term “motor vehicle” in the National Motor Vehicle Theft Act, defined to include “any other self-propelled vehicle not designed for running on rails,” encompass an airplane?

No. An airplane is not a “motor vehicle” within the meaning of Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proid

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IRAC Legal Analysis

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IRAC (Issue, Rule, Analysis, Conclusion) is the exact format professors want to see in your exam answers. Our exclusive Flash-to-Full briefs combine holding, analysis, and rule statements formatted to match what A+ students produce in exams. These structured briefs help reinforce the essential legal reasoning patterns expected in law school.

Legal Issue

Does the term “motor vehicle” in the National Motor Vehicle Theft Act, defined to include “any other self-propelled vehicle not designed for running on rails,” encompass an airplane?

Conclusion

McBoyle v. United States is a foundational case for the rule of Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation u

Legal Rule

When interpreting a criminal statute, its terms must be given their ordinary, Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud

Legal Analysis

Writing for a unanimous Court, Justice Holmes focused on the principle of Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum. Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum. Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum. Lorem ipsum dolor sit amet, consectetur adipiscing el

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Flash Summary

  • Issue: Does the National Motor Vehicle Theft Act, which criminalizes the
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occae

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