Overview

A Massachusetts Justice of the Peace is a ceremonial and ministerial officer, not a judge. The office is set by Massachusetts statute. The state’s official duty summary describes the work in narrow terms: performing marriages, giving oaths, taking acknowledgments, taking depositions, and calling certain meetings. A Justice of the Peace in Massachusetts has no power to preside over a court, hear contested matters, take testimony, weigh evidence, or issue rulings. Court power in the Commonwealth rests with judges of the Massachusetts Trial Court — not with Justices of the Peace.

The Commonwealth’s Official Duty List

The Commonwealth publishes a summary of duties for a Justice of the Peace on Mass.gov. That summary is the starting point for any review of what the office can do. It lists the duties of the office and cites the Massachusetts General Laws that authorize each one. The list is short. Every duty on it is ceremonial, notarial, or administrative. None of them is judicial.

The rest of this article walks through each duty, cites the controlling statute, and explains where the duty begins and ends.

The Five Enumerated Functions

1. Performing Marriages

The best-known role of a Massachusetts Justice of the Peace is performing marriages. The power is not automatic. Under Mass. Gen. Laws ch. 207, sec. 39, the Governor must designate the Justice for this purpose. The statute caps how many can be designated: one per town, plus one for every 5,000 residents of a city or town. (Town clerks who are also Justices of the Peace do not count toward the cap.) A Justice with that designation may marry people in the city or town of appointment and, with limited exceptions, anywhere in the Commonwealth. The Justice must use a marriage form set by state law, return the record to the proper clerk, and follow statutory rules on licenses and waiting periods. Marriage is the only duty that belongs only to the Justice of the Peace in Massachusetts. No notary public, clerk, or other officer holds this power by default.

2. Giving Oaths

A Massachusetts Justice of the Peace may give oaths and affirmations to people swearing to the truth of statements, affidavits, and similar documents. This is the kind of oath used when a person signs a sworn statement for a lawsuit, a government filing, or a private legal matter. The Justice does not judge whether the statement is true and does not act on its contents. The Justice attests that the oath was lawfully given.

3. Taking Acknowledgments

The acknowledgment function lets a Massachusetts Justice of the Peace receive a person’s statement that he or she signed a document as a free act and deed. Real estate deeds, powers of attorney, and similar documents often need an acknowledgment to be recorded or accepted by a Massachusetts registry. This work overlaps heavily with what a notary public does.

4. Taking Depositions

Under Mass. Gen. Laws ch. 233, sec. 51 and related statutes, a Justice of the Peace may take depositions for use in court. The Justice is the officer before whom the deposition is taken: the Justice gives the oath to the witness, oversees the recording of the testimony, and certifies the transcript. The Justice does not preside over the deposition in a judicial sense. The Justice does not rule on objections, does not decide whether questions are proper, and does not order anyone to answer. Disputes that come up during a deposition go to a Trial Court judge, not to the Justice taking the deposition.

5. Calling Certain Meetings

Massachusetts statute lets a Justice of the Peace call certain meetings — most often the first town meeting in newly formed towns, or other meetings where the statute says a Justice of the Peace shall convene it. This role is administrative. The Justice issues the call, makes sure notice is given as the law requires, and presides only long enough to organize the body until officers are chosen. The Justice does not vote, does not rule on disputes during the meeting, and has no ongoing authority once the body is formed.

A Note on Constitutional Classification

The Mass.gov page on the office states that “a Justice of the Peace is classified as a judicial officer under Chapter III of the Massachusetts Constitution.” That classification matters as a label. It does not settle what the office can actually do. A position can be classified as a “judicial officer” for tenure, oath, and removal rules in the Constitution while exercising no court power at all. The listed duties — marriages, oaths, acknowledgments, depositions, and calling certain meetings — control whether the office is a judicial office in the sense that matters for the youngest-judge question. None of those duties involves hearing cases, weighing evidence, or issuing rulings. The label and the real-world role diverge, and that divergence is the key feature of the Massachusetts office.

This may also explain how Guinness World Records reassigned the “youngest judge” record in 2023 to a Massachusetts Justice of the Peace. If the review relied on the Mass.gov label rather than the actual duties, the label alone would support a youngest-judge result — but the duties would not. The Massachusetts Constitution does not treat the office as a court office in any working sense. A separate page develops that argument in detail: see The “Judicial Officer” Label and Why It Fails. The rest of this page lays out the duties so the question can be judged on the substance, not the label.

What the Office Cannot Do

The list of things the office cannot do matters as much as the list of what it can do. A Massachusetts Justice of the Peace, acting in that role, cannot:

  • Preside over a court of any kind — civil, criminal, juvenile, probate, or housing;
  • Hear contested matters between parties;
  • Take testimony in a court case (other than the limited deposition role above, which is supervisory, not judicial);
  • Weigh evidence or judge witness credibility;
  • Rule on whether evidence is admissible or whether questions are proper;
  • Issue rulings, judgments, decrees, or orders;
  • Hold a person in contempt;
  • Issue arrest warrants, search warrants, or warrants of any other kind;
  • Set bail or release conditions;
  • Sign criminal complaints in place of a clerk-magistrate or judge; or
  • Pick, instruct, or discharge juries.

None of these powers appears in the Mass.gov duty summary, in chapter 222 of the General Laws (which governs the office), or in any other Massachusetts statute found in ordinary legal research. The lack of any court power is the key feature of the Massachusetts JP role.

How Appointment Works

The Governor of the Commonwealth of Massachusetts appoints Justices of the Peace under Chapter II, Section I, Article IX of the Massachusetts Constitution. The appointment needs the advice and consent of the Executive Council (also called the Governor’s Council) — an elected eight-member body that confirms judicial and quasi-judicial appointments. Under Chapter III, Article III of the Constitution, the term is seven years. After that, a Justice may apply to be reappointed. To apply, a candidate submits a completed application, a resume, four signatures from references in the city or town where the candidate lives, and one letter of recommendation. The Massachusetts Constitution and the General Laws set no other qualifications. There is no minimum age, no requirement of legal training, and no requirement of past public service.

That stands in sharp contrast to how Massachusetts judges are appointed. Judges of the Trial Court are picked by the Governor from lawyers admitted to practice in the state. They are vetted by a Judicial Nominating Commission and the Joint Bar Committee. They go through a public hearing before the Executive Council. And they serve until the constitutional retirement age of seventy. The two paths use the same Governor and the same Council. But the vetting, qualifications, term length, and resulting power are completely different.

How Massachusetts Compares to Other States

The Massachusetts office is one of several uses of the title “Justice of the Peace” across the United States. In some states, the title still means a trial-court officer with civil or criminal jurisdiction. In other states, the title has stayed as a ceremonial label for an office that only performs marriages and notarial acts. In a third group, the office has been ended or renamed.

Massachusetts falls firmly into the second group. For a side-by-side comparison across fourteen states, with the primary statute for each, see the companion explainer on justice of the peace function vs. title by state. Reading this Massachusetts page alongside the multi-state explainer makes the same point two ways: the Massachusetts office is not a court office, and the Massachusetts pattern is one of several national patterns.

Why This Matters for the Youngest-Judge Question

This page is part of worldsyoungestjudge.com, a site that shows why Marc L. Griffin’s 1974 appointment as a Justice of the Peace in Johnson County, Indiana, makes him the world’s youngest judge based on the real powers of the Indiana office. Griffin served as a local trial judge in Indiana over civil and criminal matters. Guinness World Records recognized him as the world’s youngest judge. In 2023, Guinness reassigned the record to a Massachusetts Justice of the Peace.

Whether that reassignment was correct turns on whether the Massachusetts office held the same court power as the Indiana office. The duties listed on this page show that it did not. The Massachusetts office is limited to ceremonial and ministerial work. It does not include the power to hear cases, weigh evidence, or issue rulings. Because Guinness defines a judge by what the office does — not by the title — the reassignment does not match Guinness’s own published standard.

For the underlying Indiana evidence, see the historical record of Marc Griffin’s 1974 appointment as Justice of the Peace, which collects nearly one hundred newspaper accounts from the time, along with primary source documents.

Frequently Asked Questions

Is a Massachusetts Justice of the Peace a judge?
No. A Massachusetts Justice of the Peace is a ceremonial and ministerial officer. The office has no power to hear cases, weigh evidence, or issue rulings. Its duties are limited to performing marriages, giving oaths, taking acknowledgments, taking depositions, and calling certain meetings.
Can a Massachusetts Justice of the Peace marry someone?
Yes. Under Mass. Gen. Laws ch. 207, sec. 39, a Justice of the Peace may perform marriages within the Commonwealth. Marriage is one of the main duties of the office.
Can a Massachusetts Justice of the Peace hear cases?
No. A Massachusetts Justice of the Peace does not preside over a court, hear contested matters, take testimony, weigh evidence, or issue rulings. Court power in Massachusetts rests with judges of the Trial Court of the Commonwealth, not with Justices of the Peace.
Who appoints Massachusetts Justices of the Peace?
The Governor of the Commonwealth of Massachusetts appoints Justices of the Peace, with the advice and consent of the Governor’s Council. The standard term is seven years. A Justice may apply for reappointment when the term ends.
What is the difference between a Justice of the Peace and a notary public in Massachusetts?
A Massachusetts Justice of the Peace can perform marriages; a notary public cannot. Both can give oaths and take acknowledgments. The two offices overlap on notarial work, but only the Justice of the Peace can perform marriages. Many people hold both commissions to broaden the documents and ceremonies they can handle.

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