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 . Joseph Graves is accused of grand theft , 12 counts of tampering with evidence and nine counts of drug trafficking , the Florida Department of Law Enforcement said in a written statement . Officials are concerned this could mean some previous convictions will be overturned .
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 .