Last September, President Obama's Council of Advisors on Science and Technology (PCAST) issued a scathing report on the use of forensic analysis and expertise in the criminal-justice system. The report looked at pattern matching forensic disciplines such as bite mark matching, shoe print matching, blood spatter analysis, fingerprint matching and hair fiber analysis. It also looked at DNA testing when investigators find biological material from multiple sources, a scenario that can bring human subjectivity into the testing. With . . .
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