Sexual Assault and Rape Defense in Massachusetts

Thirty Years of Not Guilty Verdicts — DNA Evidence, Credibility Defense, SORB, Title IX, and the Digital Evidence Challenge

Massachusetts sex offense charges carry consequences that outlast the criminal sentence by decades — Sex Offender Registry Board (SORB) classification, lifetime reporting obligations, residency restrictions, and internet publication that follows a defendant permanently. A not-guilty verdict at trial is the only outcome that definitively contradicts the accusation and eliminates the SORB exposure. Attorney Joseph Serpa has secured not-guilty verdicts in sexual assault and rape cases in Suffolk, Middlesex, Plymouth, Essex, Bristol, and Worcester Superior Courts, and across Massachusetts District Courts — including acquittals in aggravated rape, indecent assault and battery, voyeurism, and youthful offender life felony sexual assault trials. Contact Serpa Law Office at 617.936.0201 for an immediate confidential consultation.

See the full list of representative acquittals: Massachusetts Criminal Defense Trial Results.

Massachusetts Sex Offense Charges: The Statutory Framework

Rape (M.G.L. c. 265, § 22)

Rape under M.G.L. c. 265, § 22 is a felony carrying up to life in state prison. The Commonwealth must prove that the defendant had sexual intercourse with the complainant by force and against their will. Both the element of force and the element of non-consent are required — the SJC has held in Commonwealth v. Blache (450 Mass. 583, 2008) that the force element requires more than the physical act of intercourse itself; there must be some additional force or coercion. Aggravated rape under M.G.L. c. 265, § 22(a) — committed jointly, while armed, or causing serious bodily injury — carries a mandatory minimum of 10 years in state prison. A charge of rape of a child under 16 under M.G.L. c. 265, § 22A carries 10 years to life.

Indecent Assault and Battery (M.G.L. c. 265, §§ 13H, 13B)

Indecent assault and battery on a person 14 or over under M.G.L. c. 265, § 13H is a felony carrying up to 5 years in state prison. On a person under 14 under M.G.L. c. 265, § 13B, it is a felony carrying up to 10 years. Under Commonwealth v. Vasquez, an “indecent” touching is one that a reasonable person would find offensive to a person’s sense of personal dignity — a touching of a sexual nature, whether of a private body part or otherwise intimate in character. The defendant need not have used physical force beyond the touching itself, but must have acted intentionally and without consent.

Statutory Rape (M.G.L. c. 265, §§ 23, 23A)

Statutory rape — sexual intercourse with a person under 16 — under M.G.L. c. 265, § 23 is a felony carrying up to life in state prison. Unlike rape under § 22, there is no force or non-consent requirement — the age of the complainant alone establishes the offense. Massachusetts has no “Romeo and Juliet” exception. A 19-year-old who has consensual sexual intercourse with a 15-year-old is guilty of statutory rape. M.G.L. c. 265, § 23A — aggravated statutory rape, where the defendant is at least 10 years older than the complainant — carries a mandatory minimum of 10 years. The only defenses to statutory rape are misidentification and challenges to the alleged complainant’s age where age is genuinely in dispute.

Criminal Harassment and Stalking (M.G.L. c. 265, §§ 43–43A)

Criminal harassment under M.G.L. c. 265, § 43A requires three or more separate acts of willful and malicious conduct aimed at a specific person that would cause a reasonable person to suffer substantial emotional distress. Stalking under M.G.L. c. 265, § 43 requires a pattern of conduct that would cause a reasonable person to suffer substantial emotional distress and that the defendant intended to cause such distress. Both offenses are commonly charged in the context of domestic relationships or former relationships that escalate into harassment. A conviction triggers 258E harassment prevention order implications and may trigger SORB classification.

Photographing an Unsuspecting Person (M.G.L. c. 272, § 105)

Photographing or recording a nude or partially nude person without their consent and in circumstances where the person has a reasonable expectation of privacy is a felony under M.G.L. c. 272, § 105, carrying up to 2.5 years in a House of Correction or up to 5 years in state prison for subsequent offenses. These charges frequently arise in university dormitory settings and can trigger both SORB classification and university disciplinary proceedings simultaneously.

AI-Generated Sexual Imagery and Deepfakes (M.G.L. c. 272, § 29D)

The 2024 Act to Prevent Abuse and Exploitation criminalized the creation and distribution of AI-generated sexual imagery without the depicted person’s consent under M.G.L. c. 272, § 29D. These charges can result in SORB registration and carry the full collateral consequences of a sex offense conviction. Defense of these cases requires forensic expertise in digital evidence authentication — challenging whether the image was AI-generated, who created it, the chain of custody of digital evidence, and the authenticity of metadata. See: How Massachusetts Courts Authenticate Deepfakes and AI Evidence in 2026.

Nonconsensual Intimate Image Distribution (Chapter 118, Acts of 2024 — M.G.L. c. 265, § 43A)

The Act to Prevent Abuse and Exploitation (Chapter 118, Acts of 2024), effective September 18, 2024, created Massachusetts’s first specific criminal statute prohibiting the nonconsensual distribution of intimate images — commonly called revenge porn or image-based sexual abuse. The statute makes it a criminal offense to knowingly distribute visual material depicting a nude, partially nude, or sexually explicit person who is readily identifiable and who did not consent to the distribution, where the distribution causes physical harm, economic harm, or substantial emotional distress. Consent to the creation of intimate images does not constitute consent to their distribution — the most common scenario in these cases is images originally taken during a consensual relationship that are shared without consent following a breakup. The statute applies to AI-generated deepfakes as well as authentic photographs and videos. Penalties: up to 2.5 years in a House of Correction and a fine of up to $10,000 for a first offense; up to $15,000 for subsequent offenses. In May 2025, the federal TAKE IT DOWN Act created parallel federal criminal liability for the same conduct published through online platforms, carrying up to two years imprisonment for offenses involving adults and up to three years for offenses involving minors. A defendant who shares a former partner’s intimate images on social media now faces simultaneous prosecution under both Massachusetts and federal law. See: Massachusetts Revenge Porn and Nonconsensual Intimate Image Law.

Child Pornography (M.G.L. c. 272, § 29B)

Possession of child pornography under M.G.L. c. 272, § 29B carries up to 5 years in state prison for a first offense; dissemination carries up to 10 years; production carries up to 20 years. These charges typically arise from digital forensic investigations of computers and phones conducted through search warrants under the specific requirements of Riley v. California (573 U.S. 373, 2014). Defense challenges include the digital search warrant’s particularity requirement, the forensic methodology used to identify and attribute the contraband images, the chain of custody of digital evidence from seizure through analysis, and whether the images constitute “child pornography” within the statutory definition. See: Digital Search Warrants in Massachusetts.

Common Defenses in Massachusetts Sex Offense Cases

Defense 1: The Credibility Defense — Challenging the Complainant’s Account

In most Massachusetts sex offense cases involving adult complainants and no physical evidence, the defense is fundamentally about credibility. The prosecution’s case rests on the complainant’s testimony. Defense counsel’s investigation examines:

• Prior inconsistent statements: statements made to police in the initial report, in a Title IX hearing, to friends on social media, or to family members that are inconsistent with the complainant’s trial testimony. Under Mass. R. Evid. 613, prior inconsistent statements can be used to impeach the complainant’s credibility
• The relationship between the parties and the context of the alleged encounter: text messages, emails, and social media communications between the parties before and after the alleged incident are demanded in discovery and frequently contradict the complainant’s account of the relationship and the nature of the contact
• Motive to fabricate: a complainant who had a reason to make a false accusation — anger over a breakup, a child custody dispute, retaliation for a perceived slight, an undisclosed relationship with a third party — presents a defense that the jury can weigh. Under Commonwealth v. Bohannon, evidence of the complainant’s motive to fabricate is admissible and can be presented through cross-examination and independent witnesses
• Prior false accusations: under Massachusetts case law, evidence that the complainant made prior false accusations of sexual assault against other persons is admissible under a specific exception to the Rape Shield Law (M.G.L. c. 233, § 21B). Defense counsel must file a motion and establish the prior accusation’s falsity before the jury hears it
• Delay in reporting: a significant unexplained delay between the alleged incident and the report to police is relevant to credibility and can be addressed in closing argument. Defense counsel presents expert testimony on the psychology of delayed reporting when the prosecution seeks to preemptively explain the delay

Defense 2: DNA and Forensic Evidence

DNA evidence — the presence or absence of the defendant’s DNA, or the presence of another person’s DNA in a sexual assault case — is frequently central to the defense. Defense counsel examines:

• The Sexual Assault Nurse Examiner (SANE) examination: the timing of the examination, the specific collection procedures, the chain of custody from collection to the State Police Crime Laboratory, and whether the examination findings are consistent with the complainant’s account or with consensual sexual contact
• Mixed DNA profiles: when a DNA sample contains genetic material from multiple contributors, the statistical interpretation of the mixed profile requires expert review. The probabilistic genotyping software used by the Massachusetts State Police Crime Laboratory — STRmix — generates likelihood ratios that can be challenged by defense experts
• The DNA analyst: under Melendez-Diaz v. Massachusetts (557 U.S. 305, 2009), the defendant has a Sixth Amendment right to confront the specific analyst who performed the DNA analysis. The analyst’s qualifications, methodology, and the laboratory’s accreditation status are all subject to cross-examination
• Consensual intercourse: the presence of the defendant’s DNA in a sexual assault case is consistent with both rape and consensual intercourse. DNA evidence alone — without corroborating evidence of force or non-consent — is not sufficient to prove rape beyond a reasonable doubt

Defense 3: The Rape Shield Law (M.G.L. c. 233, § 21B) — Strategic Navigation

Massachusetts’s Rape Shield Law under M.G.L. c. 233, § 21B prohibits introduction of evidence of the complainant’s past sexual conduct with anyone other than the defendant, unless the court finds that the evidence is relevant and more probative than prejudicial after an in camera hearing. The Rape Shield Law does not prohibit evidence of:

• Prior sexual conduct between the defendant and the complainant — evidence that the parties had a prior consensual sexual relationship is relevant to the question of consent
• Prior false accusations of sexual assault — this is a recognized exception to the Rape Shield Law under Massachusetts case law
• Physical evidence of prior sexual conduct offered to explain physical findings inconsistent with the charged assault

Defense counsel must file a motion under § 21B before trial to introduce any Rape Shield-covered evidence. The motion is heard in camera. Strategic use of the § 21B exception for prior consensual conduct between the parties is one of the most powerful tools in the defense of date rape and acquaintance rape cases.

Defense 4: Consent

The consent defense applies when the sexual contact was voluntary and agreed to by both parties. In Massachusetts, consent must be affirmatively established — the prosecution bears the burden of proving non-consent beyond a reasonable doubt, not the defendant the burden of proving consent. Under Commonwealth v. Caracciola (409 Mass. 648, 1991), consent is not negated merely by the complainant’s failure to resist physically if resistance was prevented by fear. But a complainant’s prior voluntary participation in sexual contact, voluntary intoxication that did not render them incapable of consent, and post-incident conduct inconsistent with non-consent are all relevant to the jury’s assessment of whether the Commonwealth has proven non-consent beyond a reasonable doubt.

Defense 5: Digital Evidence — Challenging Authenticity and Attribution

A growing proportion of Massachusetts sex offense cases — particularly those involving M.G.L. c. 272, § 105 (unlawful photography), M.G.L. c. 272, § 29D (AI-generated imagery), and child pornography under M.G.L. c. 272, § 29B — depend entirely on digital evidence. Defense counsel challenges:

• Search warrant particularity under Riley v. California: a warrant to search a phone or computer must specify the categories of data to be examined. A warrant that authorizes a general search of all data on the device is constitutionally deficient under the Fourth Amendment’s particularity requirement
• Forensic methodology: the specific software used to extract and analyze digital data — Cellebrite, FTK, Axiom — and whether the analysis was performed by a qualified forensic examiner following established protocols
• Attribution: the fact that an image is found on a device does not establish that the device’s owner put it there. Malware, shared devices, and remote access can all explain the presence of content without the defendant’s knowledge
• AI-generation authentication: for deepfake and AI-generated imagery cases, the SJC’s 2026 evidence update requires specific authentication methodology — biometric inconsistency analysis, metadata examination, and model attribution analysis. See: How Massachusetts Courts Authenticate Deepfakes and AI Evidence in 2026

Title IX and the Parallel Campus Proceeding

For university students at Harvard, MIT, BU, BC, Northeastern, Tufts, and Brandeis, a sexual assault allegation initiates two simultaneous proceedings operating under fundamentally different standards:

• The criminal proceeding: beyond a reasonable doubt, right to counsel, right to confront witnesses, right against self-incrimination
• The Title IX campus proceeding: preponderance of the evidence (51%), reduced due process rights, typically no right to confront witnesses directly, advisor-limited representation

A student can be expelled through the campus process — losing academic standing, housing, and potentially years of tuition investment — before the criminal case reaches a pretrial conference. And statements made in the campus proceeding can be subpoenaed and used in the criminal case. Defense counsel must coordinate both proceedings from the moment of the accusation: refusing to make admissions in the campus proceeding that would be harmful in the criminal case, while also ensuring the student is not unrepresented in a proceeding that can end their academic career before any trial.

The most dangerous scenario: a student who speaks freely to the Title IX investigator believing the campus proceeding is confidential, only to have those statements surface in the criminal case through a prosecution subpoena. The right to remain silent applies in the Title IX proceeding when there is a parallel criminal investigation. Defense counsel must advise the student to limit participation in the campus proceeding until the criminal defense strategy is established.

SORB: Sex Offender Registry Board Classification

A conviction for a Massachusetts sex offense triggers mandatory Sex Offender Registry Board (SORB) registration and classification — a civil proceeding separate from the criminal case. SORB classifies sex offenders as:

• Level 1 (non-public registration): the offender must register with SORB but registration information is not publicly available. Employers, landlords, and the general public cannot access Level 1 registration information without law enforcement access
• Level 2 (public registration): registration information is publicly available through the SORB website. Employers, landlords, neighbors, and the general public can search the offender’s name and find the registration
• Level 3 (public registration with active community notification): the highest classification. Active community notification — including distribution of the offender’s photograph and information to neighbors, schools, and community organizations — is required. Level 3 classification severely limits housing and employment options

SORB classification occurs at a separate civil hearing after the criminal conviction. The defendant has the right to counsel at the SORB hearing and the right to present evidence challenging the proposed classification level. Defense at a SORB hearing focuses on risk factors — the nature of the offense, the defendant’s criminal history, the relationship to the victim, the defendant’s age, evidence of rehabilitation, and the absence of subsequent offenses. A strong mitigation presentation at the SORB hearing can result in a lower classification level with significantly different practical consequences.

The collateral consequences of SORB registration — residency restrictions (no residence within certain distances of schools, daycares, or parks), employment restrictions, community notification, and internet publication — are often more practically devastating than the criminal sentence itself. The defense of the criminal case directly determines the SORB exposure. A not-guilty verdict eliminates SORB registration entirely.

Courts Where Serpa Law Office Handles Sex Offense Cases

Sex offense cases begin in District Court or BMC and may be transferred to Superior Court for trial. Attorney Serpa has tried sex offense cases across Massachusetts courts:

• Suffolk Superior Court — where Serpa Law Office obtained a Not Guilty verdict in aggravated rape (Comm. v. KB) and a Not Guilty verdict in aggravated assault and battery with intent to commit rape (Comm. v. JB)
• Middlesex Superior Court — where Serpa Law Office obtained a Not Guilty verdict in rape/date rape and indecent assault and battery (Comm. v. NA)
• Plymouth County Superior Court — where Serpa Law Office obtained a Not Guilty verdict in a joint venture rape case (Comm. v. MR)
• Essex County Juvenile Court — where Serpa Law Office obtained a Not Guilty verdict in a youthful offender life felony sexual assault trial (Comm. v. LF)
• Bristol County District Court — where Serpa Law Office obtained Not Guilty on three counts of indecent assault and battery and intimidation of a witness (Comm. v. RJ)
• Worcester County District Court — Not Guilty, indecent assault and battery (Comm. v. TH)
• BMC Central Division — Not Guilty, photographing an unsuspecting nude person (Northeastern University case — Comm. v. SM)

Contact Serpa Law Office at 617.936.0201 for a confidential consultation. Sexual assault defense requires immediate retention of experienced trial counsel — the investigation that produces the most important defense evidence must begin as close to the alleged incident as possible.

See also: AI-Generated Sexual Imagery and Deepfake Defense, College and University Student Criminal Defense, Illegal Searches and Seizures in Massachusetts, Digital Search Warrants in Massachusetts, and How Massachusetts Courts Authenticate Deepfakes and AI Evidence in 2026.