A new investigative report has found the U.S. Justice Department has long withheld critical evidence that could have exonerated hundreds of prisoners and parolees. According to the Washington Post, prosecutors have failed to inform scores of defendants and their attorneys of flawed forensic work that could have led to acquittals. The Justice Department has reviewed forensic cases dating back to 1995, but has only made their findings available to prosecutors in the affected cases. The Justice Department review only focused on a limited amount of cases and mainly on the work of one scientist, despite complaints the problem of sloppy forensic work was more widespread. At least one defense attorney says he will seek a new trial for his client after being informed of the Washington Post’s findings that prosecutors withheld knowledge of forensic problems in his client’s case.