SAN FRANCISCO, CA — A three-judge panel of the US Court of Appeals for the 9th Circuit, covering nine western states, earlier this week ruled unanimously that the Department of Justice is barred by federal law from prosecuting medical marijuana businesses if those businesses are operating in compliance with state law.

This decision came in an appeal in which the court had consolidated ten different cases from California and Washington, in which the defendants — growers and dispensaries — had argued that their federal indictments should be dismissed because of a current ban, enacted by Congress in 2014, on the use of federal funds to prosecute state-compliant medical marijuana activities.

Known as the Rohrabacher-Farr Amendment, the language of the enactment said federal funds could not be used to prevent states from “implementing their own state laws that authorize the use, distribution, possession or cultivation of medical marijuana.”

The Department of Justice had argued the ban only precluded their interference with the state governments, and did not ban federal prosecutions against individual defendants. The Court of Appeals rejected this argument, and remanded the cases back to the US District Courts for an evidentiary hearing to determine if the individual defendants had in fact acted in compliance with their state medical marijuana laws.

Judge Diarmuid O’Scannlain, writing for the panel, did warn in his opinion that Congress could restore funding to prosecute these cases “tomorrow, a year from now, or four years from now, and the government could then prosecute individuals who committed offenses while the government lacked funding.”