United States v. Jason Phifer (11th Cir. September 2018)
Drug Offenses, Eleventh Circuit
|The Court reversed a defendant’s conviction for possession with the intent to distribute ethylone. At issue was whether ethylone is a “positional isomer” of butylone, which would therefore make it an illegal controlled substance. The DEA asserted that it was, pursuant to its regulations defining “positional isomers.” The Court disagreed, holding that the DEA’s definition did not unambiguously apply to ethylone, and the Rule of Lenity did not allow for Auer deference in criminal prosecutions.