Xiulu Ruan v. United States

Background

Two practicing doctors were tried and convicted for giving controlled drugs by prescription in ways the Government said were not authorized under federal law. The doctors relied on a federal regulation that says a prescription is authorized only when it is issued for a legitimate medical purpose and in the usual course of professional practice. Lower courts applied mainly objective “good faith” or professional-standard instructions and affirmed the convictions, so the cases reached the Supreme Court to decide the required mental state for conviction.

Reasoning

The Court asked whether the statute’s words “knowingly or intentionally” apply to the law’s exception for authorized prescriptions. The majority said yes. It explained that criminal law normally requires proof of a defendant’s guilty state of mind for serious crimes, and that whether a prescription is authorized often separates lawful medical care from criminal conduct. The Court held that once a doctor produces evidence of authorization, the Government must then prove beyond a reasonable doubt that the doctor knowingly or intentionally acted without authorization. The Court rejected the Government’s proposal to use an objective “reasonable good faith” test instead.

Real world impact

The ruling means prosecutors will generally need to show a doctor knew or intended that a prescription was unauthorized before a jury can convict under the criminal drug law. The Supreme Court vacated the appeals courts’ judgments and sent the cases back so lower courts can decide whether the trial jury instructions matched the new rule and whether any errors were harmless.

Dissents or concurrances

A separate opinion agreed with the result but argued the statute should be read as preserving a doctor’s subjective good-faith defense, showing there is disagreement about how best to protect valid medical practice.