How Massachusetts Judges Decide Sealing and Expungement Petitions

Massachusetts judges do not apply one general fairness test to every sealing and expungement request. A judge decides whether to seal a dismissal or nolle prosequi under M.G.L. c. 276, § 100C. A judge also decides whether to grant a time-based expungement petition after the Commissioner of Probation certifies eligibility and whether to grant a § 100K petition after the petitioner proves a qualifying statutory ground. Conviction sealing under § 100A ordinarily proceeds through the Commissioner without a judge.

This page explains who decides each request, what the petitioner must prove, and what evidence a judge can evaluate. The Massachusetts sealing and expungement standards page provides the detailed eligibility rules, waiting periods, statutory exclusions, and expungement grounds. The firm’s guide to sealing and expunging a Massachusetts criminal record explains how sealing restricts access and expungement erases a covered Massachusetts record.

The Commissioner’s Role in Conviction Sealing

A person seeking conviction sealing under § 100A submits a written request to the Commissioner of Probation. When the record satisfies every statutory requirement and no exclusion applies, the Commissioner must seal it. A judge does not decide whether the person deserves sealing and cannot shorten the waiting period. The standards page explains those requirements.

Judicial Sealing of a Dismissal or Nolle Prosequi

Section 100C gives a judge no discretion over a not-guilty finding, grand-jury no bill, or judicial finding of no probable cause. The record must be sealed unless the defendant submits a written request not to seal it. In Commonwealth v. J.F., 491 Mass. 824 (2023), the Supreme Judicial Court confirmed that the statute makes sealing mandatory for those dispositions. The defendant does not need to prove good cause.

A dismissal or nolle prosequi requires a petition to the court. The judge may seal the record when substantial justice would best be served. Under Commonwealth v. Pon, 469 Mass. 296 (2014), the petitioner must establish good cause. The judge balances the public interest in access against the petitioner’s privacy and reintegration interests.

The Pon factors include:

• The particular disadvantage that public access to the record causes;
• Evidence of rehabilitation;
• Whether sealing would alleviate the identified disadvantage;
• The petitioner’s circumstances at the time of the alleged offense;
• The time since the alleged offense and disposition; and
• The nature of, and reason for, the dismissal or nolle prosequi.

The petition should identify a current or reasonably foreseeable disadvantage with enough detail for the judge to evaluate it. A general assertion of hardship does not identify the problem that public access causes. Employment correspondence, a licensing requirement, a housing decision, an educational application, or other reliable documentation can show what the record prevents the petitioner from doing. An affidavit can explain the petitioner’s circumstances, rehabilitation, and why sealing would address the stated disadvantage.

A completed continuance without a finding or pretrial-probation disposition may end in dismissal. After the court enters the dismissal, the person may petition under § 100C without waiting three or seven years, but the dismissal does not make sealing automatic. The practitioner’s guide to sealing dismissals and CWOFs explains that filing sequence.

The Judge’s Decision After Time-Based Eligibility

The Commissioner of Probation first determines whether a time-based expungement petition satisfies the statutory eligibility rules described on the standards page. If the Commissioner certifies eligibility, the Commissioner notifies the district attorney, who may object.

The court then decides whether expungement serves the best interests of justice and must enter written findings explaining its order. Statutory eligibility permits the court to consider the petition, but it does not require the judge to expunge the record. The petition should document every required eligibility fact and explain why permanently erasing the covered record serves the best interests of justice in the petitioner’s circumstances.

The Burden of Proof for Reason-Based Expungement

Section 100K permits expungement when the petitioner proves that the record resulted from one of the specific grounds the statute identifies. The standards page lists those grounds. A favorable disposition, hardship, or rehabilitation does not by itself establish one of them.

The petitioner must prove a qualifying ground by clear and convincing evidence. In Commonwealth v. K.W., 490 Mass. 619 (2022), the Supreme Judicial Court held that proof of that statutory ground creates a strong presumption in favor of expungement. Absent a substantial countervailing concern, the judge must grant the petition. This presumption applies only to reason-based expungement under § 100K. Statutory eligibility for time-based expungement does not create the same requirement.

K.W. also held that a judge may not weigh the petitioner’s other criminal records against expungement of the qualifying record, and the petitioner does not have to prove the particular disadvantage required for sealing a dismissal under § 100C. The court must hold a hearing if the petitioner or district attorney requests one. If the judge denies an otherwise qualifying petition because of a substantial countervailing concern, the judge must enter written findings that identify the concern and explain the denial. If the judge grants expungement, § 100K requires written findings of fact.

The petition should connect police reports, court records, identity documents, sworn statements, or other reliable evidence directly to the statutory ground. A person whose record resulted from another person’s use of identifying information may also need records discussed on the firm’s page about Massachusetts identity fraud and financial crimes.

Evidence for the Judge

The petitioner should submit documents that prove the facts required by the applicable statute and judicial standard. A complete submission ordinarily begins with a current CORI, the court docket, and records showing the precise disposition of every relevant charge.

For a § 100C dismissal or nolle prosequi petition, the evidence should address the Pon factors and the particular disadvantage that public access causes. For time-based expungement, the documents should establish the statutory eligibility facts and explain why expungement serves the best interests of justice. For a § 100K petition, the evidence must prove the qualifying statutory ground by clear and convincing evidence.

An affidavit should state the important facts directly and identify the attached documents that support them. The petition should not ask the judge to infer the disposition, the statutory ground, or the practical reason for the request from an incomplete record.

Where Each Judicial Petition Begins

A person files a § 100C petition in the court that handled the case. A time-based expungement petition begins with the Commissioner of Probation and proceeds to court after the Commissioner certifies eligibility. A person presents a § 100K petition to the court that created the record. The applicable statute requires notice to the district attorney.

The Supreme Judicial Court held in Gravito v. Commonwealth that § 100C permits a defendant to obtain the defendant’s own automatically sealed acquittal record. That access can matter when counsel needs the underlying documents to prepare a later filing. The firm’s sealing and expungement FAQs answer additional questions about records, applications, and the differences between the procedures.

Preparation of Sealing and Expungement Petitions

Attorney Joe Serpa is a Georgetown University Law Center graduate who has practiced Massachusetts criminal defense since 1995. He begins with the current CORI, docket, disposition records, and documents concerning the client’s reason for seeking sealing or expungement. He identifies the governing procedure, confirms the decision-maker and burden of proof, and prepares the petition and supporting evidence for that standard.

To discuss a Massachusetts sealing or expungement petition, call 617.936.0201 or contact Serpa Law Office for a confidential consultation.