Plain-English summary
Prosecutors must prove doctors knowingly prescribed drugs outside authorized medical practice
In Ruan v. United States (2022), the Supreme Court held that the federal criminal law banning unlawful distribution of controlled substances requires the government to prove a doctor acted knowingly or intentionally in prescribing outside the usual course of professional practice. The Court vacated and remanded the conviction because the jury instructions did not make clear that the mens rea applied to the statute's 'except as authorized' clause.
Why this matters
The decision protects doctors from being criminally convicted for honest medical judgments unless the government proves they knew their conduct was unauthorized. It narrows how prosecutors may rely on the "outside the usual course of professional practice" standard in controlled-substances prosecutions and affects how trials and jury instructions must be run in similar cases.
Who may feel it
- Physicians and other licensed prescribers of controlled substances
- Patients who receive controlled-substance prescriptions
- Federal prosecutors and defense lawyers handling drug-prescribing cases
- Medical boards and regulators that investigate prescribing practices
Key questions
- Does the statutory mens rea ("knowingly or intentionally") in 21 U.S.C. § 841(a)(1) apply to the "except as authorized" clause that distinguishes lawful from unlawful prescriptions?