Suffolk County
791,891 people, served by 25 police agencies that report to the FBI. Below: how a case moves here, from arrest to court.
How a case moves here
Suffolk County follows Massachusetts law on arrests, release, and courts. These rules are the same in every county in the state; the full set covers prosecutors, defense, and jails too.
- Who decides release first
When court is closed, a bail commissioner or a district court clerk-magistrate sets bail; neither is a judge. When court is open, a judge sets bail at arraignment. A person arrested for violating an abuse prevention order or for some domestic abuse charges can't be bailed for 6 hours except by a judge in open court.
G.L. c. 276, s. 57- Time to see a judge
A person arrested and not released must be brought to court for arraignment the same day if court is in session, or at its next session. The rule sets no hour limit. The U.S. Supreme Court's 48-hour rule for a probable cause finding applies as the federal floor.
Mass. R. Crim. P. 7(a)(1)- Money bail
Money bail is allowed, but release on a personal promise to appear is the default. A judge must consider what the person can afford, and must explain in writing why bail is needed when it will likely keep the person in jail for a long time.
G.L. c. 276, s. 58- Courts
The Superior Court hears the most serious crimes and is the only court for first-degree murder. The District Court and the Boston Municipal Court hear misdemeanors and felonies punishable by up to five years, plus some others. Most criminal cases start in the District Court.
Massachusetts Superior CourtMassachusetts District Court- Judges and magistrates
The governor nominates and appoints judges with the consent of the Governor's Council. Judges hold office during good behavior until the mandatory retirement age of 70. Clerk-magistrates are appointed the same way.
Mass. Const. pt. 2, c. 2, s. 1, art. 9 and c. 3, art. 1
Read from the statutes and court rules cited, 2026-09-30. Qualifications for bail commissioners and clerk-magistrates were not found in statute.
What this county does differently
Nothing county-specific yet
Police agencies
- Boston Police DepartmentBoston city671,262 served
- Revere Police DepartmentRevere city60,265 served
- Chelsea Police DepartmentCity40,069 served
- Winthrop Police DepartmentWinthrop Town city18,566 served
- Berklee College of MusicUniversity or College
- Beth Israel Deaconess Medical CenterOther
- Boston UniversityUniversity or College
- Boston University Medical CenterOther
- Bunker Hill Community CollegeUniversity or College
- Capitol PoliceOther State Agency
- Division of Law Enforcement Environmental PoliceOther State Agency
- Emerson CollegeUniversity or College
- Fisher CollegeUniversity or College
- MA0130000County
- Massachusetts Bay Transportation Authority: Suffolk CountyOther State Agency
- Massachusetts College of ArtUniversity or College
- Massachusetts General HospitalOther
- MCPHS UniversityUniversity or College
- Northeastern UniversityUniversity or College
- Roxbury Community CollegeUniversity or College
- Simmons CollegeUniversity or College
- State Police: Suffolk CountyState Police
- Suffolk UniversityUniversity or College
- University of Massachusetts: Harbor Campus, BostonUniversity or College
- Wentworth Institute of TechnologyUniversity or College
Agencies: FBI NIBRS master file 2025 batch headers; names from the FBI agency list, pulled 2026-09-29. An agency that serves several counties appears on each. Population served is the FBI's figure.
Crime and arrests
No figures yet