How Cases Are Defended

Every case is prepared for trial from the first day, whatever the evidence appears to be. Trial readiness produces favorable resolutions, and 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, including 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 were denied at clerk-magistrate hearings before any record was created. Hundreds more cases were dismissed in the District and Superior Courts. When the Commonwealth would not dismiss, juries returned not-guilty verdicts. Those verdicts include 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, the 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 the 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. In OUI cases 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. In domestic violence cases, 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 and knows the judges, the clerk-magistrates, and the 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. A more complete list appears at the end of this page.

Suffolk County: Boston Municipal Court

The Boston Municipal Court (BMC) operates across eight divisions covering every Boston neighborhood. The Central Division serves Downtown, the Financial District, and the Seaport, and the Brighton, Charlestown, Dorchester, East Boston, Roxbury, South Boston, and West Roxbury divisions cover the rest of the city, including the BU area, Logan Airport, Jamaica Plain, Hyde Park, and 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, from Harvard Square fake ID arrests and Financial District larceny charges to Logan Airport firearms cases for out-of-state travelers and Longwood Medical Area cases for physicians and researchers.

Norfolk County

Quincy District Court at 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, and our Quincy office is five minutes from the courthouse. Brookline District Court at 360 Washington St holds exclusive Brookline jurisdiction, and BU, BC, and Northeastern students and Longwood Medical Area physicians form a significant portion of the docket. Dedham District Court at 631 High St serves Dedham, Dover, Medfield, Needham, Norwood, Wellesley, and Westwood, with a 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 at 4040 Mystic Valley Pkwy in Medford serves Cambridge, Arlington, and Belmont. It hears the highest concentration of Harvard, MIT, and Lesley University student cases and Kendall Square professional cases in the system. Somerville District Court at 175 Fellsway serves Somerville and Medford, with Tufts University students and Assembly Row larceny cases. Malden District Court, which shares the Medford courthouse with Cambridge, serves Malden, Everett, Melrose, and Wakefield and hears Encore Boston Harbor drug charges and casino-area larceny cases. Waltham District Court at 38 Linden St serves Waltham, Watertown, and Weston, covering the Route 128 OUI corridor and Brandeis and Bentley students. Woburn District Court at 30 Pleasant St serves Woburn, Burlington, Winchester, Wilmington, Stoneham, Reading, and North Reading, with I-93 and Route 128 interchange OUI enforcement and Burlington Mall shoplifting cases. Newton District Court at 1309 Washington St in West Newton serves Newton alone and hears Turnpike and Route 9 OUI charges, BC students, and Newton medical professionals. Concord District Court at 305 Walden St serves Concord, Lexington, Carlisle, Lincoln, Bedford, Acton, Maynard, and Stow, covering the Route 2 and I-95 OUI corridor and Hanscom AFB security clearance cases. Framingham District Court at 600 Concord St serves Framingham, Ashland, Holliston, Hopkinton, Sudbury, and Wayland, with Turnpike and Route 9 OUI enforcement and MetroWest corporate professionals.

Plymouth County

Hingham District Court at 28 George Washington Blvd serves Hingham, Norwell, Scituate, Hanover, Hull, and Rockland, with 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 the Salem, Lynn, Lawrence, Peabody, and Newburyport District Courts, in the Bristol County courts in Taunton, Fall River, Attleboro, and New Bedford, and in the Worcester County courts in Worcester, Fitchburg, Leominster, Milford, and Westborough. For out-of-state visitors and travelers facing charges from stops on I-90, I-93, I-95, or 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.

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, also called a show cause hearing, is a private, pre-arraignment proceeding at which a formal criminal complaint can be stopped before it issues. If the application is 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.

Two features of the hearing reward experienced counsel. First, the clerk-magistrate is not limited to a probable cause finding. Even where the paperwork technically supports a complaint, the clerk-magistrate may decline to issue it, continue the application for a period of good behavior, or hold it open while restitution or counseling is completed, and an advocate who knows the practices of the particular courthouse can propose the resolution that court actually uses. Second, the hearing is the defense’s first look at the Commonwealth’s evidence. Even when a complaint ultimately issues, a well-run hearing has tested the complaining witness’s account and shaped the record for the arraignment and everything after it. Attending unprepared, or speaking without counsel, surrenders both advantages at the one stage that can never be repeated.

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

Massachusetts District Attorneys enforce the OUI laws under M.G.L. c. 90, § 24 strictly, with 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. The defense begins with the constitutionality of the traffic stop, moves through the administration of the 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, so the 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 the 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 under 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 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 the Massachusetts Domestic Violence FAQs and Defending 209A and 258E Violations.

A domestic violence case also moves faster than almost any other charge. The accused is often held overnight, arraigned the next morning, and placed under bail conditions or a stay-away order before any defense investigation has begun. The early work decides much of what follows. Preserving text messages and 911 audio, interviewing witnesses before memories harden, and preparing the parallel 209A hearing on its own terms protect both the criminal defense and the client’s housing, employment, and family situation.

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

Massachusetts firearms defense begins with the constitutionality of the stop and the 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 of the Acts of 2024, added new felony exposure for unregistered and unserialized firearms, with an October 28, 2026 compliance deadline. See The October 28, 2026 Massachusetts Firearms Registration Deadline and How to Avoid a Felony.

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

Drivers cited for criminal motor vehicle offenses such as negligent operation, leaving the scene, and 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 to 100E)

Sealing and expungement give people 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, and the DCJIS answers their inquiries with “no record found.” Expungement under M.G.L. c. 276, § 100E permanently destroys the record. Misdemeanor convictions can be sealed after three years and felonies after seven. Dismissed cases can be sealed immediately upon petition. The better strategy, where it is available, is to keep the record from being created at all. A clerk-magistrate denial requires nothing to be sealed later, because there is nothing to seal. See the Massachusetts CORI Sealing and Expungement FAQ and Massachusetts Sealing and Expungement Standards.

Digital Evidence, Phone Searches, and AI-Generated Evidence

Massachusetts criminal defense now regularly involves digital evidence, including 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 once they are suppressed the prosecution is usually left without a case. Attorney Serpa has secured suppression of drug evidence and dismissals across Massachusetts drug cases for thirty years.

Sex Crimes

Massachusetts devotes substantial resources to prosecuting rape, indecent assault and battery, sexual assault, and 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 in the Plymouth County Superior Court, Middlesex Superior Court, Suffolk Superior Court, and Essex County Juvenile Court. The defense of sex offense charges examines the DNA evidence, the credibility of the complainant’s account, and the Commonwealth’s proof beyond a reasonable doubt on 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. The defense may challenge the elements of the offense, demonstrate the absence of criminal intent, or establish consent. For first-time defendants, the strongest path is often 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 such as 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 each of these categories in jury trials across the 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 printed in the statute. It is the record and everything attached to it.

Licensed Professionals

Physicians, nurses, attorneys, educators, engineers, and financial and securities professionals answer to boards that ask about charges, not just convictions. The arraignment CORI entry can trigger mandatory licensing board reporting before the case is ever resolved, and 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 therefore begins with preventing the arraignment, not with accepting a CWOF after it, and every step is sequenced around the client’s reporting obligations. See Criminal Defense for Licensed Professionals.

College, University, and Graduate Students, and Their Parents

Students at Harvard, MIT, BU, BC, Northeastern, Tufts, Brandeis, Bentley, and Framingham State face a school proceeding that runs on its own schedule alongside the criminal case. Fake ID charges, OUI, drug charges, sexual assault allegations, and Title IX proceedings all follow the same pattern. A criminal charge initiates a criminal case and a university disciplinary proceeding at the same time, and the arraignment CORI entry is often what triggers the campus disciplinary process. A clerk-magistrate denial protects the transcript, the visa, and the career pipeline at once, which makes it the most valuable intervention available. Fake ID cases deserve particular care. What looks like a rite of passage can be charged as a serious license offense with lasting record consequences, yet these cases are among the most winnable at the show cause stage when the hearing is properly prepared. For parents managing a child’s first contact with the system, the objective is a private outcome the young person never has to disclose. See Student Criminal Defense and Massachusetts Criminal Records and CORI.

Non-Citizens, Visa Holders, and Permanent Residents

For students, H-1B and other visa professionals, lawful permanent residents, and the undocumented, the arraignment itself can carry federal consequences, and a Massachusetts CWOF operates as a conviction under federal immigration law. Every disposition is therefore chosen against the federal immigration 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 Massachusetts Criminal Charges and Immigration Consequences for F-1 and H-1B Holders.

Tradespeople, CDL Holders, and Commuters

The license is the livelihood. 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 when the work is done they end at a clerk-magistrate hearing with no record at all.

Visitors and Out-of-State Defendants

From concert and stadium cases in Wrentham and Attleboro to summer matters in the Cape courts in Barnstable, Falmouth, and Orleans and October cases in Salem, a Massachusetts charge should not require repeated trips back to the Commonwealth. 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, how bail works, and how the arraignment clock runs are covered in 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. Start with 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. See 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. Read Your Right to Remain Silent in Massachusetts.
• Police want your phone or your passcode. What the Fifth Amendment and Article 12 actually protect is explained in 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. See Restraining Order Defense and Defending 209A and 258E Violations.
• The Commonwealth moved for a dangerousness hearing. What § 58A allows and how detention is contested are covered in The Massachusetts Dangerousness Hearing Under G.L. c. 276, § 58A.
• There may be a warrant out for you. Clear a default or arrest warrant on your terms instead of at a traffic stop. See Warrants and Arrests in Massachusetts.
• You are not a citizen and you were charged. The arraignment itself can matter federally. Read Immigration Consequences of Massachusetts Criminal Charges before any court date.
• You are a student, or your child is. The school proceeding and the criminal case run at the same time. See Student Criminal Defense.
• You hold a professional license. Boards ask about charges, not convictions, and timing is everything. See Criminal Defense for Licensed Professionals.
• The case is over and the record remains. Who can see it, and what sealing actually does, are explained in 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, and 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. The Boston office is at 20 Park Plaza #400A, and the Quincy office is at 500 Victory Rd., Suite 400A. The office is available 24 hours a day.