Annie Dookhan And The Massachusetts Drug Lab Crisis


Annie Dookhan performed at least 58,070 criminal drug tests during her time at the Hinton State Laboratory. Massachusetts state police extracted records from the lab’s databases and distributed a set of spreadsheets to defense attorneys whose clients’ cases might have been affected. Those records list every test Dookhan performed and include details on chemists she worked with, drug findings, the submitting agency and, in some cases, defendants’ names.

The data is fragmented, inconsistent and incomplete. Defendants’ names aren’t standardized; many are shortened, combined or lumped together as “et al.” Some are simply police shorthand or jargon. But, we can draw some conclusions from the data we have.  Read More…

With More Work, Less Time, Dookhan’s Tests Got Faster

By May 15, 2013

Now-indicted former state chemist Annie Dookhan was by far the Hinton lab’s most productive chemist. We look at the data behind her output.

Graphic: Drug Findings Of Annie Dookhan

By May 14, 2013

Annie Dookhan performed 58,070 drug tests as a primary or secondary chemist at the Massachusetts state drug lab.

About The Data

By May 13, 2013

Annie Dookhan performed at least 58,070 criminal drug tests during a decade with the Hinton State Laboratory, acting as either primary or secondary chemist.

Latest News

January 8, 2015

Thousands Of Drug Convictions At Stake In Massachusetts High Court Case

The case before the Massachusetts Supreme Judicial Court involves Annie Dookhan, a drug lab chemist who was sentenced in 2013 to at least three years in prison after admitting she faked test results.

October 23, 2014

SJC To Hear Petition To Dismiss Convictions Tied To Dookhan

The ACLU is asking the state’s highest court to dismiss tens of thousands of criminal convictions tied to former state chemist Annie Dookhan, who admitted to tampering with evidence.

March 5, 2014

SJC Sets ‘Presumption’ Of Misconduct In Dookhan-Related Guilty Pleas

The Supreme Judicial Court ruled Wednesday that defendants seeking to withdraw guilty pleas because their cases were handled by disgraced former state chemist Annie Dookhan must indicate they would have insisted on a trial if they knew about her malfeasance.