BOSTON (AP) — A change-of-plea hearing is scheduled for a chemist at the center of a Massachusetts lab scandal that has jeopardized thousands of drug cases.

Annie Dookhan has pleaded not guilty to obstruction of justice and tampering with evidence. On Monday, a court docket showed that a hearing for her to change that plea is scheduled for Nov. 22.

READ MORE: Firefighters Rescue Elderly Woman Whose Car Plunged Into Ayer Pond

A judge said last week that she won’t impose a sentence of more than three to five years if Dookhan decides to change her plea to guilty.

READ MORE: Celtics Hand Clippers A Win With 23 Turnovers

The docket also shows that a hearing on Dookhan’s motion to suppress her statements to state police has been canceled. It had been scheduled for Wednesday.

Dookhan’s lawyer did not immediately return telephone and email messages. A spokesman for the state attorney general declined to comment.

MORE NEWS: Which Towns Got At Least 1 Inch Of Snow During First Winter Storm Of The Season?

Copyright 2013 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.

[display-posts category=”local” wrapper=”ul” posts_per_page=”4?”]