To expunge your record, you'll need to fill out the Petition to Expunge Form. If you want, you can also provide additional information to support your petition.Massachusetts Probation Service Petition to Expunge Form. This form is used to request a time-based expungement of your criminal record. Edit, sign, and share sample expungement letter to judge online. No need to install software, just go to DocHub, and sign up instantly and for free. How to Request CORI? ○ Fill out CORI Personal Request Form. Learn which cases you can seal and who can see a sealed CORI. • Affidavit of Indigency (for waiver of fee).