Leocal v. Ashcroft, 543 U.S. 1 (2004)
Leocal v. Ashcroft is a cornerstone Supreme Court case at the intersection of criminal law and immigration law.
Does a state DUI offense that results in serious bodily injury, but requires no more than negligent (or accidental) conduct, constitute a "crime of violence" under 18 U.S.C. § 16 and, therefore, an aggravated felony under the INA?
Under 18 U.S.C. § 16, a "crime of violence" is: (a) an offense that has as an element the use, attempted use, or threatened use of physical force against the person or property of another; or (b) any other felony that, by its nature, involves a substantial risk that physical force against the person or property of another may be used in the course of committing the offense. The term "use" of physical force connotes active, volitional employment of force; offenses that require only negligent or accidental conduct do not satisfy § 16(a) and do not, by their nature, involve a substantial risk that force will be actively used within the meaning of § 16(b). Courts apply a categorical approach, focusing on the statutory elements rather than the facts of the defendant's conduct. Any lingering ambiguities in deportation statutes are construed in favor of the noncitizen.
No. A DUI offense like Florida's, which requires no more than negligent or accidental conduct and does not have as an element the active use of physical force against another, is not a "crime of violence" under § 16(a) or § 16(b). Therefore, it is not an aggravated felony for removal purposes.
Leocal is foundational for understanding how "crime of violence" provisions are construed in immigration and criminal contexts. It clarifies that the "use of force" requires active, volitional conduct, excluding offenses satisfied by mere negligence or accident. The decision entrenches the categorical approach and highlights the immigration-lenity canon. Leocal has influenced later jurisprudence on force clauses and mens rea, and it framed debates later seen in cases addressing reckless conduct and residual clauses. For law students, Leocal exemplifies careful statutory interpretation, the interaction between criminal classifications and immigration consequences, and the importance of mens rea in defining violent offenses.