By Dan Verello, CNN

A chemist accused of failing to follow protocols at a Massachusetts crime lab had been involved in testing some 50,000 drug samples, potentially opening the door to a swath of legal challenges, officials said Wednesday.

Annie Dookhan Scandal in Massachusetts: Due Diligence, Diversity-Style Will Cost Taxpayers Millions of $, and May Cause 1000s of Felons to be Freed; No One Checked AA Hire’s Fraudulent Degree Claim, or Her Work

The list of samples was turned over to prosecutors and public defenders on Tuesday. The samples were tested during Annie Dookhan's nine-year term at the facility, state authorities said. The samples were from an estimated 34,000 cases Dookhan worked on during her career, authorities said.

"Fifty-thousand drug samples in question could mean .... Read more;