How Cases Are Defended

Every case is prepared for trial from the first day, whatever the evidence appears to be, because trial readiness is what produces favorable resolutions and because some cases must be tried. When a case proceeds past the clerk-magistrate stage, the defense tests the Commonwealth’s evidence at its foundations: motions to suppress challenge the constitutionality of the stop, the search, and the statements; motions to dismiss test whether the complaint should exist at all.

In OUI cases, the defense examines the stop, the administration of the field sobriety tests, and the maintenance and calibration records of the specific Draeger Alcotest 9510 device used in the arrest. See OUI Defense in Greater Boston. In domestic violence cases, the criminal defense is coordinated from the first day with every parallel proceeding the accusation touches: the 209A hearing, the licensing board, the university, and the immigration system. See Boston Domestic Violence Defense. In motor vehicle cases that begin with a criminal citation, the four-day hearing deadline is the case, and it is acted on the day the client calls. See The Massachusetts Criminal Traffic Citation.

A Record Built in Courtrooms

Serpa Law Office measures itself by outcomes, and publishes them. Over thirty years the office has resolved cases at every level of the system: hundreds of criminal complaints denied at clerk-magistrate hearings before any record was created, hundreds of dismissals in the District and Superior Courts, and not-guilty jury verdicts in cases the Commonwealth would not dismiss, including OUI third offense in the Woburn District Court, not guilty on all counts; assault and battery with a dangerous weapon in the Boston Municipal Court, West Roxbury Division, not guilty on all counts; and aggravated rape in the Superior Court, not guilty. Prosecutors know which defense lawyers try cases, and that knowledge shapes every plea negotiation long before a jury is seated.

The full record, case by case, is at Massachusetts Criminal Defense Results. Prior results do not guarantee a similar outcome in your case; they show how this office works and what it is prepared to do.

Regardless of the courthouse, the defense sequence is consistent. For most misdemeanor charges where police did not make a warrantless arrest, the first priority is a clerk-magistrate hearing — a private, pre-arraignment proceeding under M.G.L. c. 218, § 35A that can prevent any CORI entry from being created. When a case proceeds past the clerk-magistrate stage, Motions to Suppress challenge the constitutionality of the stop and search. When suppression is denied, the case is prepared for trial — because every case is prepared for trial from day one regardless of the evidence. For OUI cases specifically, the defense examines the constitutionality of the stop, the field sobriety test administration, and the calibration records of the specific Draeger Alcotest 9510 breathalyzer used in the arrest. For domestic violence charges — including cases for licensed professionals — the defense coordinates the criminal case with any parallel licensing board, university, or immigration proceeding from the first day of representation.

For a complete guide to every Massachusetts court see: Massachusetts District Courts and Boston Municipal Court — Criminal Defense.

Criminal Defense Across Eastern Massachusetts — Courts We Serve

Serpa Law Office represents clients in Massachusetts District Courts and the Boston Municipal Court across Eastern and Central Massachusetts. Attorney Serpa has practiced in each of these courthouses for decades — knowing the judges, clerk-magistrates, and prosecutors in each building. The approach is the same in every court: identify the best available outcome at the earliest possible stage, and prepare every case for trial from day one. You can see a more complete list at the end of this page.

Suffolk County — Boston Municipal Court

The Boston Municipal Court (BMC) operates across eight divisions covering every Boston neighborhood — Central (Downtown/Financial District/Seaport), Brighton (Allston/BU area), Charlestown, Dorchester, East Boston (Logan Airport), Roxbury, South Boston, and West Roxbury (Jamaica Plain/Hyde Park/Roslindale). The Suffolk County DA’s Office prosecutes all BMC cases with a zero-tolerance policy on domestic violence, OUI, and firearms offenses. The BMC handles the highest concentration of student and licensed professional cases in the system — Harvard Square fake ID arrests, Financial District larceny charges, Logan Airport firearms cases for out-of-state travelers, and Longwood Medical Area cases for physicians and researchers.

Norfolk County

Quincy District Court (1 Dennis Ryan Pkwy) — exercises jurisdiction over Quincy, Weymouth, Braintree, Randolph, Milton, Cohasset, and Holbrook. Routes 3, 128, and I-93 generate one of the highest OUI charge volumes in the county. Our Quincy office is five minutes from the courthouse. Brookline District Court (360 Washington St) — exclusive Brookline jurisdiction. BU, BC, and Northeastern students and Longwood Medical Area physicians are a significant portion of the docket. Dedham District Court (631 High St) — serves Dedham, Dover, Medfield, Needham, Norwood, Wellesley, and Westwood. High concentration of Route 1, Route 109, and I-95 OUI and motor vehicle charges, and licensed professional cases from Wellesley and Needham.

Middlesex County

Cambridge District Court (4040 Mystic Valley Pkwy, Medford) — Cambridge, Arlington, and Belmont. The highest concentration of Harvard, MIT, and Lesley University student cases and Kendall Square professional cases in the system. Somerville District Court (175 Fellsway) — Somerville and Medford. Tufts University students and Assembly Row larceny cases. Malden District Court (4040 Mystic Valley Pkwy, Medford, shared with Cambridge) — Malden, Everett, Melrose, and Wakefield. Encore Boston Harbor drug charges and casino-area larceny cases. Waltham District Court (38 Linden St) — Waltham, Watertown, and Weston. Route 128 OUI corridor, Brandeis and Bentley students. Woburn District Court (30 Pleasant St) — Woburn, Burlington, Winchester, Wilmington, Stoneham, Reading, and North Reading. I-93/Route 128 interchange OUI enforcement, Burlington Mall shoplifting cases. Newton District Court (1309 Washington St, West Newton) — Newton only. Turnpike and Route 9 OUI charges, BC students, Newton medical professionals. Concord District Court (305 Walden St) — Concord, Lexington, Carlisle, Lincoln, Bedford, Acton, Maynard, and Stow. Route 2 and I-95 OUI corridor, Hanscom AFB security clearance cases. Framingham District Court (600 Concord St) — Framingham, Ashland, Holliston, Hopkinton, Sudbury, and Wayland. Turnpike and Route 9 OUI enforcement, MetroWest corporate professionals.

Plymouth County

Hingham District Court (28 George Washington Blvd) — Hingham, Norwell, Scituate, Hanover, Hull, and Rockland. Route 3 OUI enforcement and South Shore professional defense. Attorney Serpa also represents clients in Brockton District Court, Plymouth District Court, and Wareham District Court across the Plymouth County system.

Essex, Bristol, and Worcester Counties

Attorney Serpa represents clients throughout Essex County — including Salem, Lynn, Lawrence, Peabody, and Newburyport District Courts — Bristol County (Taunton, Fall River, Attleboro, New Bedford) and Worcester County (Worcester, Fitchburg, Leominster, Milford, and Westborough District Courts). For out-of-state visitors and travelers facing charges on Massachusetts highways — I-90, I-93, I-95, Route 3 — Attorney Serpa appears in the court with territorial jurisdiction over the stretch of road where the stop occurred and can handle routine appearances without requiring clients to return to Massachusetts for each date. See: Massachusetts Trial Court Overview.

A Record Built in Courtrooms

Serpa Law Office measures itself by outcomes, and publishes them. Over thirty years the office has resolved cases at every level of the system: hundreds of criminal complaints denied at clerk-magistrate hearings before any record was created, hundreds of dismissals in the District and Superior Courts, and not-guilty jury verdicts in cases the Commonwealth would not dismiss, including OUI third offense in the Woburn District Court, not guilty on all counts; assault and battery with a dangerous weapon in the Boston Municipal Court, West Roxbury Division, not guilty on all counts; and aggravated rape in the Superior Court, not guilty. Prosecutors know which defense lawyers try cases, and that knowledge shapes every plea negotiation long before a jury is seated.

The full record, case by case, is at Massachusetts Criminal Defense Results. Prior results do not guarantee a similar outcome in your case; they show how this office works and what it is prepared to do.

Core Practice Areas

The practice is criminal defense only, concentrated where thirty years of Massachusetts courtroom work run deepest:

• Clerk-magistrate hearings, the pre-complaint stage where hundreds of Serpa Law Office matters have ended privately, with no record.
• OUI and motor vehicle offenses, from the constitutional stop through the Draeger Alcotest 9510 record to trial, including criminal citations and the four-day rule.
• Domestic violence and 209A/258E matters, defended as one coordinated case across the criminal court, the restraining order session, and every parallel proceeding.
• Drug charges and firearms charges, where suppression litigation over the stop and the search decides the case.
• Shoplifting, larceny, and financial charges, where the record consequence dwarfs the penalty and the earliest stage is the whole case.
• Sexual assault allegations and AI-imagery and digital evidence cases, defended with forensic rigor from the investigation stage forward.

Clerk-Magistrate Hearings (M.G.L. c. 218, § 35A)

A clerk-magistrate hearing (Show Cause hearing) is a private, pre-arraignment proceeding at which a formal criminal complaint can be stopped before it issues. If denied, no complaint issues, no arraignment occurs, and no CORI entry is created. The matter is permanently and privately closed. This is the most consequential proceeding in Massachusetts criminal law, and Serpa Law Office has obtained hundreds of denials at this stage across Greater Boston courts. See: A Practitioner’s Guide to Massachusetts Clerk-Magistrate Hearings and the Complete Clerk-Magistrate Hearing FAQ.

OUI / DUI / Drunk Driving (M.G.L. c. 90, § 24)

Massachusetts District Attorneys use strict enforcement of OUI laws under M.G.L. c. 90, § 24 — a .08 BAC threshold for adults and .02 for drivers under 21. Attorney Serpa has defended OUI cases for thirty years and maintains a perfect record of Not Guilty verdicts in OUI jury trials. Defense begins with the constitutionality of the traffic stop, moves through the administration of standardized field sobriety tests, and culminates in a forensic challenge to breathalyzer evidence from the Draeger Alcotest 9510. The Commonwealth v. Ananias litigation established that over 27,000 Massachusetts breath tests were excludable — calibration records for the specific machine used in every arrest must be reviewed. See: Why a Failed Breathalyzer Does Not Equal an OUI Conviction and Massachusetts OUI FAQs.

Domestic Violence (M.G.L. c. 265, § 13M)

Common domestic violence charges include assault and battery on a family or household member (M.G.L. c. 265, § 13M), violation of 209A restraining orders, and witness intimidation. Every Massachusetts DA’s Office maintains a strict no-drop policy — cases proceed based on police observations, 911 recordings, and medical records regardless of the complainant’s wishes. Attorney Serpa has secured not-guilty verdicts in domestic violence jury trials across Massachusetts and has obtained trial-date dismissals in cases where complainants invoke the marital privilege or are unavailable to testify. See: Massachusetts Domestic Violence FAQs and Defending 209A and 258E Violations.

Firearms Offenses (M.G.L. c. 269, § 10; Chapter 135, Acts of 2024)

Massachusetts firearms defense requires examining the constitutionality of the stop and search that produced the weapon. Carrying a firearm without a License to Carry (LTC) under M.G.L. c. 269, § 10(a) carries a mandatory minimum of 18 months. The 2026 Firearms Modernization Act (Chapter 135, Acts of 2024) added new felony exposure for unregistered and unserialized firearms — with an October 28, 2026 compliance deadline. See: Massachusetts Firearms Registration Deadline: October 28, 2026.

Motor Vehicle Crimes (M.G.L. c. 90C)

Drivers cited for criminal motor vehicle offenses — negligent operation, leaving the scene, operating after suspension — have four calendar days from the date of the violation to request a clerk-magistrate hearing under M.G.L. c. 90C, § 3(B)(2). Missing that deadline waives the right entirely. See: The Criminal Uniform Traffic Citation and the 4-Day Deadline.

Sealing and Expungement (M.G.L. c. 276, §§ 100A–100E)

Sealing and expungement in Massachusetts offer individuals with past criminal records a path to a clean background check. Sealing under M.G.L. c. 276, § 100A makes a CORI record inaccessible to most employers, landlords, and educational institutions — the DCJIS responds with “no record found.” Expungement under M.G.L. c. 276, § 100E permanently destroys the record. Misdemeanor convictions can be sealed after three years; felonies after seven years. Dismissed cases can be sealed immediately upon petition. See: Massachusetts CORI Sealing and Expungement FAQ.

Digital Evidence, Phone Searches, and AI-Generated Evidence

Massachusetts criminal defense now regularly involves digital evidence — phone searches, AI-generated images, deepfakes, and digital search warrants. Under Riley v. California (573 U.S. 373, 2014), police must obtain a warrant before searching your phone. Under the Fifth Amendment and Commonwealth v. Gelfgatt, you cannot be compelled to provide your phone passcode. The Commonwealth v. Ananias litigation on breathalyzer calibration records and the 2026 Massachusetts digital evidence update have created new defense opportunities across a wide range of charges. See: Digital Search Warrants in Massachusetts, Your Right to Refuse a Phone Passcode, and How Massachusetts Courts Authenticate Deepfakes and AI Evidence.

Drug Crimes (M.G.L. c. 94C)

Massachusetts prosecutes drug crimes under M.G.L. c. 94C across a spectrum from simple possession to trafficking with mandatory minimum sentences. Effective defense begins with the constitutionality of the police search that produced the evidence — drugs found in an unconstitutional search are suppressible and, when suppressed, leave the prosecution without a case. Attorney Serpa has secured suppression of drug evidence and dismissals across Massachusetts drug cases for thirty years.

Sex Crimes

Massachusetts seriously prosecutes rape, indecent assault and battery, sexual assault, possession of child pornography, and — since the 2024 Act to Prevent Abuse and Exploitation — AI-generated sexual imagery and deepfakes under M.G.L. c. 272, § 29D. Attorney Serpa maintains a perfect record of not-guilty verdicts in sexual assault jury trials across Massachusetts — including Plymouth County Superior Court, Middlesex Superior Court, Suffolk Superior Court, and Essex County Juvenile Court. The defense of sex offense charges examines DNA evidence, the credibility of the complainant’s account, and the specific requirements of proof beyond a reasonable doubt for each element of the charged offense.

Larceny and Theft Crimes (M.G.L. c. 266, § 30; M.G.L. c. 266, § 30A)

Massachusetts shoplifting and larceny defense strategies depend on the specific facts: challenging the elements of the offense, demonstrating the absence of criminal intent, establishing consent, or — for first-time defendants — securing a clerk-magistrate hearing denial that prevents any CORI entry from being created. For professionals whose careers are implicated by a crime of dishonesty, the clerk-magistrate hearing is the most critical intervention available.

Violent Crimes

Massachusetts courts prosecute violent offenses — assault and battery with a dangerous weapon, mayhem, manslaughter, and murder — with substantial resources and experienced prosecutors. Attorney Serpa has secured not-guilty verdicts in all of these categories in jury trials across Massachusetts Superior Courts, including a first-degree murder acquittal in Plymouth County Superior Court and a not-guilty verdict on aggravated rape charges in Middlesex Superior Court. See: Representative Trial Results.

Who Serpa Law Office Defends

Most clients have never been in a courtroom before, and their real exposure is not the penalty on the statute; it is the record and everything attached to it.

• Licensed professionals, physicians, nurses, attorneys, educators, financial and securities professionals, whose boards ask about charges, not just convictions, and whose defense is sequenced around every reporting obligation. See Criminal Defense for Licensed Professionals.
  • For licensed professionals — physicians, attorneys, nurses, engineers, and financial advisors — the arraignment CORI entry triggers mandatory licensing board reporting before the case is resolved. A CWOF is treated as a conviction by most Massachusetts licensing boards regardless of its Massachusetts classification. The defense of a licensed professional’s criminal case begins with preventing the arraignment, not accepting a CWOF after it.

• College, university, and graduate students, who face a school proceeding on its own schedule alongside the criminal case, and for whom a clerk-magistrate denial protects the transcript, the visa, and the career pipeline at once. See Student Criminal Defense and Parents, managing their child’s first contact with the system, where the objective is a private outcome the young person never has to disclose. See Massachusetts Criminal Records and CORI.
  • For college and university students at Harvard, MIT, BU, BC, Northeastern, Tufts, Brandeis, Bentley, and Framingham State — facing fake ID charges, OUI, drug charges, sexual assault allegations, and Title IX proceedings — a criminal charge initiates a criminal case and a university disciplinary proceeding simultaneously. The clerk-magistrate hearing, which prevents the arraignment CORI entry that triggers the campus disciplinary process, is the most valuable intervention.

• Non-citizens, students, H-1B and other visa professionals, lawful permanent residents, and the undocumented, for whom the arraignment itself carries federal consequences and every disposition is chosen against the immigration categories first. See Immigration Consequences of Massachusetts Criminal Charges.
  • For non-citizens, students, H-1B and other visa professionals, lawful permanent residents, and the undocumented, the arraignment itself can matter federally, and a Massachusetts CWOF operates as a conviction under federal immigration law, so every disposition is chosen against the federal categories first; the full analysis is at Immigration Consequences of Massachusetts Criminal Charges and Criminal Convictions for Immigrants and Visa Holders. For how a charge can end a visa or trigger removal before any conviction, and what the current enforcement environment means for F-1 students and H-1B workers, see A Massachusetts Criminal Charge Can End a Visa Before Any Conviction and Massachusetts Criminal Charges and Immigration Consequences for F-1 and H-1B Holders.
    
    
• Tradespeople, CDL holders, and commuters, whose licenses are their livelihoods and whose motor vehicle cases are defended with the license consequences mapped from the first call. See Operating After Suspension and Unlicensed Operation.
  • For tradespeople, commuters, and CDL holders, the license is the livelihood, and a charge of operating after suspension, unlicensed operation, or negligent operation is defended with the license consequences mapped from the first call. Most of these cases begin with a criminal citation and a four-day deadline, and end, when the work is done, at a clerk-magistrate hearing with no record at all.

• Visitors and out-of-state defendants, from stadium and concert cases in Wrentham and Attleboro to summer matters in the Cape courts and holiday-weekend charges, whose matters can often be resolved with counsel appearing so the client does not have to keep returning to Massachusetts.
  • For visitors and out-of-state defendants, from concert and stadium cases at Wrentham and Attleboro to summer matters in the Barnstable, Falmouth, and Orleans courts and October cases in Salem, a Massachusetts charge should not require repeated trips back to Massachusetts. Serpa Law Office resolves most show cause matters with counsel appearing so the client does not have to, and a clerk-magistrate denial means the vacation’s worst souvenir never becomes a record.

What to Do Right Now: Guides for the First Hours

Most people find this page at a bad moment. These guides answer the questions that moment raises, and each links to a full treatment with the statutes and the steps.

• Someone was just arrested. What happens in the next hours, bail, and the arraignment clock: What to Do in the First 24 Hours After an Arrest in Massachusetts.
• A letter arrived saying “show cause hearing” or “clerk-magistrate hearing.” This is the chance to end the case before it exists: I Received a Show Cause Notice. What Do I Do? and Do I Need a Lawyer for a Clerk-Magistrate Hearing?
• A police officer handed you (or mailed you) a citation with a criminal box checked. You have four days from the violation to request a hearing: The Criminal Traffic Citation and the Four-Day Rule.
• Police want to “ask a few questions” or “hear your side.” Say nothing without counsel, politely: Your Right to Remain Silent in Massachusetts.
• Police want your phone or your passcode. What the Fifth Amendment and Article 12 actually protect: Can You Refuse to Give Police Your iPhone Passcode? and Digital Search Warrants in Massachusetts.
• You were just served with a 209A or 258E order. The two-party hearing is days away and everything said there follows you: Restraining Order Defense and Defending 209A and 258E Violations.
• The Commonwealth moved for a dangerousness hearing. What § 58A allows and how detention is contested: The Massachusetts Dangerousness Hearing Under G.L. c. 276, § 58A.
• There may be a warrant out for you. Clearing a default or arrest warrant on your terms instead of at a traffic stop: Warrants and Arrests in Massachusetts.
• You are not a citizen and you were charged. The arraignment itself can matter federally; read before any court date: Immigration Consequences of Massachusetts Criminal Charges.
• You are a student, or your child is. The school proceeding and the criminal case run at the same time: Student Criminal Defense.
• You hold a professional license. Boards ask about charges, not convictions, and timing is everything: Criminal Defense for Licensed Professionals.
• The case is over and the record remains. Who can see it, and what sealing actually does: Massachusetts Criminal Records and CORI.

Whatever the situation, the pattern is the same: the earliest step is the most valuable one, and nothing said to anyone before counsel is involved ever helps. Call 617.936.0201, any hour.

Courts Where Serpa Law Office Defends Clients

Serpa Law Office appears in 48 District Court and Boston Municipal Court divisions across Eastern and Central Massachusetts, and in the Superior Courts for indicted matters. Find your court below, or see the complete guide at Massachusetts District Courts and Boston Municipal Court: Criminal Defense.

Boston and the Urban Core

• Boston Municipal Court (Central, Brighton, Charlestown, Dorchester, East Boston, Roxbury, South Boston, and West Roxbury divisions)
• Chelsea District Court
• Cambridge District Court
• Somerville District Court
• Brookline District Court
• Newton District Court
• Quincy District Court
• Dedham District Court

North Shore and Merrimack Valley

• Malden District Court
• Woburn District Court
• Lynn District Court
• Salem District Court
• Peabody District Court
• Lawrence District Court
• Haverhill District Court
• Lowell District Court
• Newburyport District Court
• Gloucester District Court
• Ipswich District Court

MetroWest

• Waltham District Court
• Concord District Court
• Framingham District Court
• Natick District Court
• Marlborough District Court
• Ayer District Court

Central Massachusetts

• Worcester District Court
• Westborough District Court
• Milford District Court
• Clinton District Court
• Leominster District Court
• Fitchburg District Court
• Gardner District Court
• Uxbridge District Court
• East Brookfield District Court
• Dudley District Court

South Shore, Bristol County, and Cape Cod

• Hingham District Court
• Stoughton District Court
• Wrentham District Court
• Brockton District Court
• Plymouth District Court
• Wareham District Court
• Attleboro District Court
• Taunton District Court
• Fall River District Court
• New Bedford District Court
• Barnstable District Court
• Falmouth District Court
• Orleans District Court

Indicted matters proceed in the Superior Courts; Serpa Law Office tries cases across Suffolk, Middlesex, Norfolk, Essex, Plymouth, Bristol, and Worcester Counties. See Massachusetts Criminal Defense Results.

If you or a family member has been arrested, summonsed, or contacted by police anywhere in Massachusetts, the most valuable step is also the earliest one. Call Serpa Law Office at 617.936.0201 for a free consultation. Boston office: 20 Park Plaza #400A. Quincy office: 500 Victory Rd., Suite 400A. Available 24 hours a day.