Joseph Graves worked at a drug lab that tested drugs in cases . Authorities believe he switched the drugs with pills that were n't and sold the stolen pills . His bail was set at $ 290,000 . Officials are concerned this could mean some previous convictions will be overturned .
Joseph Graves worked at a crime lab that processed evidence in cases . Authorities say he switched prescription drugs with ones that were n't and sold the stolen pills . His bail was set at $ 290,000 . Officials are concerned this could mean some drug convictions will be overturned .