Commonwealth v. Guzman

In 2011, pursuant to a package plea agreement resolving two separate cases, the defendant pleaded guilty to five firearm-related charges and to one charge of possession of a controlled substance with intent to distribute (the drug charge). Four years later, he moved to withdraw all six guilty pleas based on the misconduct of State chemist Annie Dookhan. Although Dookhan played no role in the Commonwealth's investigation or prosecution of the firearm charges, the defendant maintained that had he known of her misconduct at the time his package plea agreement was negotiated, he never would have…