The top official at the state laboratory engulfed in an unfolding scandal involving mishandled drug samples has resigned and another lab executive has been fired, state law enforcement and health authorities announced Thursday. The lab officials failed to detect obvious signs of problems with a chemist’s work involving drug samples from criminal cases, state executives said at a Beacon Hill press conference. They compounded that error by making the “poor decision” to wait six months to alert the state’s public health commissioner, a state official said.
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