Download the PDF The gold standard of forensic evidence is now being challenged.
by Michael Specter

Late one afternoon in the spring of 1998, a police detective named Shirley McKie stood by the sea on the southern coast of Scotland and thought about ending her life. A promising young officer, the thirty-five-year-old McKie had become an outcast among her colleagues in the tiny hamlet of Strathclyde. A year earlier, she had been assigned to a murder case in which an old woman was stabbed through the right eye with a pair of sewing scissors. Read more »