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SALEM

Former state chemist pleads not guilty

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A chemist who used to testify for prosecutors stood up in a sixth Massachusetts courthouse Monday and again pleaded not guilty in connection with a state drug lab scandal. Annie Dookhan’s plea in Essex Superior Court on a charge of misleading the grand jury, the prosecutor, and the judge marked the end of her half-dozen arraignments following a 27-count indictment. Authorities have accused her of wrongdoing that includes fabricating drug test results and tampering with evidence while testing samples. The 35-year-old Franklin woman remained free Monday on her prior bail of $10,000, after an assistant attorney general did not ask a judge in Salem for any changes.

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