The cheap kits were often the sole evidence used to win guilty pleas, against the innocent as well the as guilty.
Four years after a Massachusetts crime lab chemist confessed to tainting evidence, more than 20,000 defendants still don’t know if their drug convictions will stand.
In August 2012, Annie Dookhan, a veteran chemist with a Massachusetts state drug lab, admitted to contaminating samples and faking test results during her eight-and-a-half-year career. More than 20,000 drug convictions, as a result, could have been flawed. Those cases involved defendants from eight different counties, and in many instances people