A recent report commissioned by the President’s Council of Advisors on Science and Technology (PCAST) calls into question the increasingly common practice of analyzing mixtures of DNA from several individuals. Above, amplified DNA samples at the police DNA lab in Fort Worth, Texas.
A recent report commissioned by the President’s Council of Advisors on Science and Technology (PCAST) calls into question the increasingly common practice of analyzing mixtures of DNA from several individuals. Above, amplified DNA samples at the police DNA lab in Fort Worth, Texas. Max Faulkner File photo
A recent report commissioned by the President’s Council of Advisors on Science and Technology (PCAST) calls into question the increasingly common practice of analyzing mixtures of DNA from several individuals. Above, amplified DNA samples at the police DNA lab in Fort Worth, Texas. Max Faulkner File photo

How DNA evidence went from reliable to error-prone

November 25, 2016 5:00 PM