A Texas judge this week declared Cornelius Dupree an innocent man, clearing him thirty years after he was wrongfully accused of rape and robbery. More than two-hundred-sixty Americans have been exonerated by DNA evidence since nineteen-eight-nine. Many, like Cornelius Dupree, were victims of eyewitness misidentification. In other cases, improper forensic science, false confessions, or unreliable snitches played a role. The criminal justice community is trying new ways to avoid false imprisonment– from independent investigations to post-conviction case reviews. Using DNA to overturn wrongful convictions.