Bulletin: Tainted forensic evidence: Comprehensive Christian Science article: "When expert testimony isn't....Tainted evidence wreaks havoc in courts, lives." (Must Read. HL);

Across the country, the criminal justice system is grappling with the fallout from decades of faulty analysis in criminal cases that may have resulted in thousands of wrongful convictions.
http://www.csmonitor.com/USA/Justice/2015/0526/When-expert-testimony-isn-t-Tainted-evidence-wreaks-havoc-in-courts-lives-video