How a chemist circumvented her lab’s safeguards
Close supervision is key in a lab, specialists say, and Annie Dookhan’s appeared to lack it
State drug lab chemist Annie Dookhan labeled the vials as containing THC, the active ingredient in marijuana. But when another chemist ran the vials through a machine to confirm Dookhan’s analysis, one had little THC, and another was mixed with morphine and codeine. The incident, detailed in a State Police report, illustrates one of the many ways Dookhan was able to circumvent safeguards intended to ensure drug evidence was properly handled by workers in a now-closed state drug-testing lab.