In part, the crime lab scientist stole, used and messed with drugs while employed at the crime lab since…..

“An interim report by state Assistant Attorney General Thomas Caldwell said, “Ms. Farak began using controlled substances regularly in the last quarter of 2004; Ms. Farak was under the influence of controlled substances during a vast majority of her working hours from the last quarter of 2004 to her removal from the lab on Jan. 18, 2013.”

Of course, defense attorneys, one of which exposed the entire debacle, are not pleased that the prosecutors declined to find any prosecutor misconduct during the startup of this investigation in 2013.

http://www.masslive.com/news/index.ssf/2016/12/multi-day_hearings_will_try_to.html

Deeper look into the story. “Crime Lab Scandal Explodes.” From Chemistry World. 

Here’s another long term crime lab scandal involving another MA chemist: Annie Dookhan. A 129 page report. Both convicted lab chemists once worked at the same MA State crime lab.