An airman who was demoted and sentenced to hard labor after popping positive for cocaine has had his conviction overturned by an appellate judge who found government prosecutors failed to turn over evidence and did not adequately consider his defense that the flagged substance could have been tainted pre-workout power .

A Sept. 15 decision by the United States Court of Appeals for the Armed Forces — the military’s highest appeals court — found that Bryce Roan, a former senior airman, was disadvantaged by errors and omissions by the prosecution.

The decision, handed down by CAAF Judge John E. Sparks, returns the case to the Air Force and authorizes a rehearing. It was not clear Tuesday whether the service would choose that option. A request for comment to Lt. Col. Jenny Liabenow, the he

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