Officials started reviewing the cases in the 1990s after reports that sloppy work by examiners at the FBI lab was producing unreliable forensic evidence in court trials. Instead of releasing those findings, they made them available only to the prosecutors in the affected cases, according to documents and interviews with dozens of officials.
In addition, the Justice Department reviewed only a limited number of cases and focused on the work of one scientist at the FBI lab, despite warnings that problems were far more widespread and could affect potentially thousands of cases in federal, state and local courts.
As a result, hundreds of defendants nationwide remain in prison or on parole for crimes that might merit exoneration, a retrial or a retesting of evidence using DNA because FBI hair and fiber experts may have misidentified them as suspects.
In one Texas case, Benjamin Herbert Boyle was executed in 1997, more than a year after the Justice Department began its review. Boyle would not have been eligible for the death penalty without the FBI’s flawed work, according to a prosecutors memo.
So yeah, even you're happily ensconced on the FUCK YEAH, KILL MURDERERS range of the spectrum, our system for determining exactly who the murderers are that need killing is grievously flawed.