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 ...

The injustice orchestrated by lab chemist Annie Dookhan was first revealed five years ago, after she had been working for the Massachusetts state drug lab for nearly a decade to help prosecutors ...

A chemist at the Massachusetts State Crime Laboratory in Amherst has been charged with allegedly tampering with drug evidence and drug possession, according to Attorney General Martha Coakley ...

A former chemist for the state of Massachusetts' crime labs pleaded guilty Friday to falsifying drugs tests that potentially compromised tens of thousands of criminal cases. WBUR reports she ...

Deval Patrick said Thursday. Dookhan was the most productive chemist in the lab, routinely testing more than 500 samples a month, while others tested between 50 and 150. But one co-worker told ...