Thornton v. United States

Background

A group of residents and cattle owners in Echols County, Georgia, were indicted for conspiring to attack and obstruct employees of the Bureau of Animal Industry. The indictment alleged they dynamited spray pens and dipping vats, wounded several inspectors, and killed one inspector while resisting cattle-dipping and quarantine work. The defendants were tried in the federal district court, convicted under a conspiracy statute tied to the law that forbids assaulting federal animal inspectors using deadly weapons, and the conviction was affirmed by the Court of Appeals and then by this Court.

Reasoning

The Court considered whether federal law authorized the Secretary of Agriculture and Bureau employees to supervise dipping and quarantine measures inside a State and whether Congress could act under the power to regulate interstate commerce. The opinion summarizes several federal statutes giving the Secretary authority to inspect, quarantine, and require dipping to prevent spread of contagious cattle disease between States. It held that those activities were part of a quarantine adapted to protect interstate livestock movement. The Court also explained that the conspiracy indictment need not allege detailed facts about state cooperation or that the particular cattle were in interstate commerce to support a conspiracy charge to resist federal officers in their duties.

Real world impact

The decision upholds criminal liability for attacking federal animal inspectors and for destroying government facilities used in quarantine and dipping. It confirms that federal officials may carry out quarantine and dipping measures aimed at stopping disease that would affect interstate commerce, including where cattle range across state lines. The ruling leaves in force the convictions and supports federal authority to protect interstate livestock movement from contagious disease.