Massachusetts police chiefs, defense lawyers, and prosecutors are preparing for the potential fallout from an evidence tampering scandal at a busy state drug laboratory, which could put convicted felons back on the streets and seriously damage public confidence in the justice system. The law enforcement community is grappling with revelations that Annie Dookhan, a chemist who worked for nine years at the lab, may have mishandled or tampered with drug evidence, mixed samples from unrelated cases, and manipulated evidence to increase its weight.
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