“The FBI is reviewing 2,000 cases convicted on hair samples after it has emerged that there has been widespread errors in forensic testing and how the evidence was portrayed in court. As many as 27 prisoners facing the death penalty may have been wrongfully convicted along with potentially thousands of others across the country. Since the 1980s, hundreds of convictions have been overturned on improper forensic science – which includes bite marks, blood analysis and shoe prints along with hair samples. Forensic testing has never been proved 100 per cent accurate by science – but at times, was presented by experts in court as if conclusive.”
