Annie Dookhan, a former chemist at the Hinton State Laboratory Institute, listens to the judge during her arraignment at Brockton Superior Court in Brockton, Massachusetts in this file photo taken ... more 
Annie Dookhan, a former chemist at the Hinton State Laboratory Institute, listens to the judge during her arraignment at Brockton Superior Court in Brockton, Massachusetts in this file photo taken January 30, 2013. Dookhan, a former Massachusetts state crime-lab chemist who admitted to faking drug test results, was the sole "bad actor" at the facility, but lax management allowed her to carry on for nine years, an official review released on Tuesday concluded. Dookhan was sentenced in November to three to five years in prison after pleading guilty to charges including tampering with evidence, obstruction of justice and perjury REUTERS/Jessica Rinaldi/Files (UNITED STATES - Tags: CRIME LAW) less 
1 / 8
Reuters | Photo By JESSICA RINALDI / Reuters
Tue, Mar 4, 2014 2:42 PM EST