Ratzlaf v. United States

Background

A Nevada gambler owed a large debt and, after being told banks must report cash transactions over $10,000, bought several cashier’s checks under $10,000 at different banks and paid the casino. The Government charged him with “structuring” transactions to evade bank reporting rules under federal law and secured a conviction. The trial judge told the jury the Government need only prove he knew banks had to report such transactions and intended to avoid that reporting.

Reasoning

The Court asked whether the word “willfully” in the criminal penalty provision means the Government must show the defendant knew his conduct was unlawful. Relying on the reporting statutes’ structure and prior court interpretations, the majority held “willfulness” requires proof that the defendant knew the structuring itself was illegal. The Court emphasized that treating the willfulness word as meaningless would conflict with statutory context, noted real-life examples where splitting transactions can be innocent, and applied the rule favoring defendants when criminal statutes are ambiguous.

Real world impact

The Court reversed the conviction and sent the case back for further proceedings consistent with its ruling. Going forward, prosecutors must prove a defendant knew structuring was illegal before obtaining a criminal conviction under the cited provisions, which will make some prosecutions harder and require clearer jury instructions.

Dissents or concurrances

A dissent argued the majority departs from the usual rule that ignorance of the law is no defense, urged the statute already punished purposeful evasion, and warned the decision reopens a congressional enforcement gap.