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//c.o0bg.com/rf/image_90x90/Boston/2011-2020/2013/04/02/BostonGlobe.com/Metro/Images/fb9305b9c69841e4a5fe862e17debba4-58318052a31d1b03280f6a706700e2a2--90x90.jpg More signs of disarray in closed state drug lab

The findings raise questions about the integrity of testing throughout the Jamaica Plain lab where indicted chemist Annie Dookhan worked.

//c.o0bg.com/rf/image_90x90/Boston/2011-2020/2013/02/03/BostonGlobe.com/Metro/Images/dookhan-3375.jpg Annie Dookhan pursued renown along a path of lies

The former chemist finally found fame, as scandal engulfed the state drug lab.

//c.o0bg.com/rf/image_90x90/Boston/2011-2020/2013/01/09/BostonGlobe.com/Metro/Images/kreiter_dookhan5_met.jpg Former state chemist pleads not guilty

Annie Dookhan faces a total of 27 charges, including 17 counts of obstruction of justice and eight counts of tampering with evidence.

Video | The Back Story

Covering the state drug lab scandal

Scott Allen talks about the Globe investigation into one of the biggest law enforcement scandals in Massachusetts history.

E-mails portray state drug lab in chaos

Internal e-mails ­describe a staff drowning in work, misplaced evidence in crime cases, and mounting frustrations over the Patrick administration’s seeming indifference.

Drug defendants freed in lab scandal

Suffolk County judges have freed at least 11 defendants facing drug charges, almost all with lengthy criminal records, since early September, in the first wave of potentially thousands of cases.

Governor Patrick defended his handling of the matter, blaming a “rogue chemist.”

Drug lab crisis may follow Governor Patrick

The state drug-testing crisis could taint the national image of Governor Patrick, which was elevated at the Democratic National Convention.

About the drug lab scandal

Former state chemist Annie Dookhan is accused with mishandling and manipulating drug evidence that may have helped convict hundreds of people from 2003 through 2012. The state now faces the task of reviewing each case - and conviction - that may have been tainted as a result of the drug lab scandal.

Cases affected by the scandal

Attorney David Meier, a former district attorney, and Governor Deval Patrick spoke at a press conference Thursday.

Patrick picks investigator in drug-evidence scandal

Governor Patrick named former prosecutor David Meier to lead the investigation into fears of widespread tampering at a state drug laboratory.

Fallout from the scandal

Dr. John Auerbach has resigned as state public health commissioner.

Mass. public health chief quits in lab scandal

Commissioner John Auerbach said that he bears responsibility for a lack of oversight that led to mishandling of drug evidence, possibly jeopardizing thousands of criminal cases.

Rogue chemist Annie Dookhan

Going back to her days on the Boston Latin Academy track team, Annie Dookhan relentlessly pursued prestige.

Annie Dookhan pursued renown along a path of lies

The former chemist finally found fame, as scandal engulfed the state drug lab.

Former state chemist Annie Dookhan pleaded not guilty in Suffolk Superior Court on Thursday to 15 charges of mishandling and tainting drug evidence.

Chemist’s e-mails show ties to prosecutors

Annie Dookhan, arraigned Thursday on 15 counts of altering drug evidence and obstructing justice, viewed herself as part of the prosecution team, the ­e-mails show.

State drug lab inquiry

The William A. Hinton State Laboratory Institute houses the Massachusetts state drug lab in Jamaica Plain.

Drug lab investigation getting new leader

Inspector General Glenn Cunha will now take over the sweeping inquiry into the lab, while Attorney General Martha Coakley will focus on the criminal investigation.

Opinion on the scandal

lawrence harmon

Black mark on the state drug lab

Disturbing details are starting to emerge about the alleged mishandling of drug samples at the state testing laboratory in Jamaica Plain.

Globe Investigations

Special section

//c.o0bg.com/rf/image_90x90/Boston/2011-2020/2012/06/18/BostonGlobe.com/Special/Images/magnifying_glass1500618-081--90x90.jpg Recent investigative reports

Read recent stories and ongoing investigations from the Globe’s journalists.