Former state lab chemist Annie Dookhan, left, sits in Middlesex Superior Court 

Former state lab chemist Annie Dookhan, left, sits in Middlesex Superior Court for arraignment with her father, Rasheed Khan, on Wednesday, Jan. 9, 2013, in Woburn, Mass. Dookhan pleaded not guilty to three counts of obstruction of justice.  She is charged in connection with altering drug evidence during the testing process and obstructing justice. Prosecutors allege Dookhan fabricated test results and tampered with drug evidence while testing substances in criminal cases.  (AP Photo/The Boston Globe, Suzanne Kreiter, Pool)
Associated Press
Former state lab chemist Annie Dookhan, left, sits in Middlesex Superior Court for arraignment with her father, Rasheed Khan, on Wednesday, Jan. 9, 2013, in Woburn, Mass. Dookhan pleaded not guilty to three counts of obstruction of justice. She is charged in connection with altering drug evidence during the testing process and obstructing justice. Prosecutors allege Dookhan fabricated test results and tampered with drug evidence while testing substances in criminal cases. (AP Photo/The Boston Globe, Suzanne Kreiter, Pool)
View Comments