Digital Evidence in Massachusetts Criminal Cases: Admission and Objection

Text messages, Snapchat videos, Instagram direct messages, dating-application conversations, screenshots, and phone-extraction reports are common exhibits in Massachusetts criminal cases. Their existence does not make them admissible. Before jurors may consider digital evidence, the Commonwealth must show that the exhibit is what it claims, connect it to the alleged author, address any hearsay objection, and present a sufficiently accurate and complete record. Defense counsel should identify these issues before trial, when a motion in limine and an evidentiary hearing can prevent an unreliable exhibit from reaching the jury.

Forms of Digital Evidence

Digital evidence includes SMS and iMessage threads, Snapchat images and captions, Instagram posts, stories, and direct messages, and communications through Facebook Messenger, WhatsApp, Signal, Tinder, Hinge, Bumble, and Grindr. It also includes the records behind those communications, such as subscriber information, login history, Internet Protocol logs, preservation records, and reports generated from a seized phone.

Each exhibit presents several distinct questions. Was it lawfully obtained? Is it an authentic communication or record? What evidence identifies the person who created or sent it? Is each statement admissible for the purpose for which it is offered? A satisfactory answer to one question does not answer the others.

The Authentication Standard

Section 901(a) of the Massachusetts Guide to Evidence requires the proponent to produce evidence sufficient to support a finding that an item is what the proponent claims it is. The 2026 edition of the Guide took effect on February 1, 2026.

Authentication is a preliminary question under Section 104(b). When the relevance of an exhibit depends on another fact, the proponent must introduce evidence sufficient to support a finding that the fact exists. The judge may admit an exhibit de bene, on the condition that the required proof will follow. If that proof never arrives, the opponent should move to strike the exhibit.

When a judge admits evidence de bene, defense counsel should ask the court to identify on the record what additional proof is required and when the proponent must supply it. That request preserves the condition and creates a clear point at which counsel can move to strike.

The authentication standard is not proof beyond a reasonable doubt. In Commonwealth v. Purdy, 459 Mass. 442, 447-451 (2011), the Supreme Judicial Court held that the judge asks whether the evidence would allow a reasonable jury to find authenticity by a preponderance of the evidence. A competing claim that another person wrote the message ordinarily concerns weight rather than admissibility. The court relied on Commonwealth v. Hartford, 346 Mass. 482, 488 (1963), and Commonwealth v. Williams, 456 Mass. 857, 868-869 (2010).

Account Names and Confirming Circumstances

The proponent cannot authenticate a communication by offering an account name alone. As the Supreme Judicial Court explained in Purdy, another person can create an account in the defendant’s name or use a phone that belongs to someone else. The Commonwealth must provide circumstances connecting the communication to the person it identifies as the author.

In Commonwealth v. Meola, 95 Mass. App. Ct. 303, 308-313 (2019), the Appeals Court applied the Section 104(b) framework and confirmed that circumstantial proof may authenticate an electronic communication. The possibility of fraud does not automatically require exclusion. Section 901(b)(11) now states the electronic-communications rule directly: confirming circumstances must permit a reasonable fact finder to conclude that the evidence is what its proponent claims. Neither expert testimony nor proof of exclusive account access is always required. See also Commonwealth v. Oppenheim, 86 Mass. App. Ct. 359, 366-368 (2014).

Courts consider the appearance, contents, substance, internal patterns, and distinctive characteristics of the communication. Evidence that the defendant acknowledged using the account, owned the device, knew the password, or lived with the account holder may contribute to authentication. Commonwealth v. Welch, 487 Mass. 425, 441-442 (2021), collected these factors and quoted Commonwealth v. Lopez, 485 Mass. 471, 477-478 (2020), where cohabitation supplied a confirming circumstance.

Courts may also consider familiar tone, references to earlier conversations, knowledge of facts associated with the alleged author, and recurring spelling errors. See Commonwealth v. Gonsalves, 99 Mass. App. Ct. 638, 641-642 (2021). A court may find confirming circumstances within the contents of the exhibit. Commonwealth v. Earl, 102 Mass. App. Ct. 664, 683 (2023).

The judge does not decide whether the defendant personally typed the message merely by admitting it. The Commonwealth may present circumstantial evidence, and defense counsel may challenge the competing inference before the jury.

Authenticity and the Identity of the Sender

Authenticity and authorship are different questions. A communication may be a genuine Snapchat or Instagram message without establishing that the defendant sent it.

The Appeals Court emphasized that distinction in Commonwealth v. Bustard, 106 Mass. App. Ct. 442 (2026). The Commonwealth offered a single Snapchat message reading “You happy,” sent from an account bearing a name associated with the defendant’s acquaintances and a bitmoji resembling him. The court concluded that the evidence did not prove beyond a reasonable doubt that the defendant sent the message and reversed the conviction.

Defense counsel should address both issues expressly. The judge applies Section 901 to decide whether the exhibit is authentic. The Commonwealth must still prove the identity of the sender to the degree required by the charge and the use it makes of the communication. A ruling admitting the exhibit does not determine that ultimate question. The Appeals Court also discussed Commonwealth v. McMann, 97 Mass. App. Ct. 558, 559 (2020), which described Instagram and its messaging functions.

Text Messages, iMessage, and Group Chats

Text-message evidence often comes through a recipient who identifies a screenshot or thread. A witness with personal knowledge may authenticate an exhibit under Section 901(b)(1), but that testimony does not eliminate problems within the exhibit.

A screenshot may omit the sender’s number. A thread may be cropped. An iMessage may have come from a shared computer or tablet rather than the phone associated with the account. The time stamp may reflect a device setting, time-zone conversion, or the manner in which the exhibit was generated. Jurors ordinarily can interpret the meaning of a displayed time stamp without expert testimony. Commonwealth v. Caruso, 476 Mass. 275, 289 (2017).

Group chats present a separate authorship problem. A message displayed within a group conversation may show the conversation name rather than the individual sender unless the recipient’s device preserved the participant list at the relevant time. The Commonwealth must connect the specific communication to the defendant rather than rely on the existence of the group or the defendant’s membership in it.

Snapchat Images, Videos, and Captions

Snapchat evidence commonly appears as a recipient’s screenshot, a video saved to memories, or records produced by the platform. Each format presents a different foundation.

In Commonwealth v. Carrasquillo, 489 Mass. 107 (2022), the Supreme Judicial Court held that a defendant had no reasonable expectation of privacy in content shared with an undercover officer whom the defendant had accepted as a friend. No constitutional search occurred in those circumstances. The court did not adopt a categorical rule that every social-media post eliminates every privacy interest.

Captions require separate attention. In Commonwealth v. Theogene, Mass. App. Ct., No. 24-P-1395 (Apr. 9, 2026), the Appeals Court upheld the admission of captions on a Snapchat video as excited utterances. The court’s analysis built on Commonwealth v. Mulgrave, 472 Mass. 170, 178-179 (2015), which recognized that text messages can qualify as excited utterances because the immediacy of the medium may support spontaneity.

The defense inquiry remains factual. Counsel should determine how much time passed, whether the declarant remained under the stress of the event, and whether the declarant edited, retyped, or selected suggested text. Snapchat permits a user to record a video, save it, and add a caption later before sending it. When the Commonwealth offers a captioned video as an excited utterance, counsel should determine when the video was recorded, when the caption was added, whether the video was edited, and whether the user sent it from memories rather than in real time.

Instagram and Dating Applications

Instagram evidence includes public posts, stories, and direct messages. Public posts may present fewer privacy questions, but they still require proof connecting the post to the alleged author. Direct messages raise both privacy and authorship questions.

The same authentication principles apply. The Commonwealth may identify the handle and then rely on confirming circumstances. A public account with many followers may permit access by a larger group and support a stronger challenge to authorship.

Conversations from Tinder, Hinge, Bumble, and Grindr frequently appear in harassment, stalking, sexual-assault, and enticement prosecutions. Profiles can be fabricated. A user may lose message history when a match is removed or an account is deleted. Conversations also migrate from the application to text messaging or another platform, leaving fragments maintained by different custodians. Defense counsel may rely on those features when challenging identity, completeness, and context.

Screenshots, Copies, and the Best Evidence Rule

Article X of the Massachusetts Guide to Evidence governs proof of the contents of writings and records. Section 1002 requires an original writing or record unless another evidence provision, statute, or common-law rule permits a substitute. Section 1001 defines writings and records as letters, words, numbers, or their equivalents. It separately addresses photographs, recordings, videos, and digital images.

The rule does not bar every copy of an electronic record. An email or text message does not have an original in the traditional paper sense. Commonwealth v. Salyer, 84 Mass. App. Ct. 346, 356 n.10 (2013). In the same footnote, the Appeals Court explained an important limit: oral testimony offered to prove the contents of an electronic record is barred for the reasons underlying the best evidence rule. A detective who paraphrases a message from memory without placing the communication in evidence presents the problem described in Salyer.

A screenshot is a photograph of a display rather than a record produced by the platform or device. It captures what appeared on one screen at one moment, but it contains no metadata that an examiner can verify. When the Commonwealth possesses the device or an extraction report but offers screenshots instead, defense counsel can ask why the more complete source was not presented and raise the resulting limitation under Section 403.

Extraction Reports and the Lay-Expert Boundary

Phone evidence often reaches court through an extraction report. In Commonwealth v. Cronin, 495 Mass. 170 (2025), the Supreme Judicial Court distinguished permissible lay testimony from expert testimony about extraction technology.

An officer who received certification training and performed the extraction may describe the general extraction procedure, the steps the officer personally took, and information displayed in a report formatted for ordinary readers. That testimony can fall within Section 701.

The officer may not provide a lay opinion about the system’s accuracy, reliability, or protection against alteration. Those subjects require a properly qualified expert under Section 702 because they exceed ordinary knowledge. When the testimony moves from what the officer did to why the software should be trusted, defense counsel should object, request a voir dire, and move to strike any inadmissible reliability opinion.

Hearsay Within Digital Evidence

Authentication does not resolve hearsay. A message offered for the truth of what it says is hearsay unless an exclusion or exception applies.

The defendant’s own message, when offered against the defendant, is not hearsay under Section 801(d)(2). That rule does not generally permit a defendant to introduce a separate exculpatory message merely because the Commonwealth offered an inculpatory one.

Section 803(2) permits an excited utterance made while the declarant remains under the stress of a startling event. Mulgrave applied that doctrine to text messages, and Theogene applied it to Snapchat captions. The medium may support immediacy, but the proponent still must establish the declarant’s condition and the timing and circumstances of the statement.

A message offered to show notice, fear, its effect on the recipient, or the reason for a later action may not be offered for its truth. The judge should identify the permitted purpose, and defense counsel should request an appropriate limiting instruction.

Platform records may qualify as business records under G.L. c. 233, § 78 if the court makes the required findings. The record must have been made in good faith, in the regular course of business, before the proceeding began, and at a time when making that record was the regular course of the business. In a criminal jury trial, the statute requires the jury to make the final determination on those preliminary factual questions.

Even when the court admits platform data as a business record, the user’s messages remain separate potential hearsay and require their own basis for admission.

Records Obtained From a Platform

G.L. c. 233, § 79J governs certain third-party records accompanied by a custodian’s affidavit. The custodian certifies that the record is true and complete and delivers it to the clerk. The statute treats a photographic copy as equivalent to the original and provides sufficient identification when the record is otherwise admissible.

Federal law governs what an electronic-service provider may disclose. Under 18 U.S.C. § 2703, the government needs a warrant for content held in electronic storage for 180 days or less. For older content, it may proceed by warrant without notice or, with notice, by subpoena or a Section 2703(d) order.

A Section 2703(d) order requires specific and articulable facts showing that the records sought are relevant and material to an ongoing criminal investigation. The standard is higher than relevance but lower than probable cause. Only a federal court may issue the order, although federal law does not require one when the government proceeds by warrant.

Noncontent records require a warrant, a Section 2703(d) order, or consent. The government may obtain basic subscriber information by subpoena, including the subscriber’s name, address, session records, and payment information. Section 2703(f) permits the government to require preservation for 90 days and to renew the demand once.

Defense counsel cannot use those government investigative tools. The defense route is a summons under Massachusetts Rule of Criminal Procedure 17(a)(2). Under Commonwealth v. Lampron, 441 Mass. 265 (2004), the moving party must establish that the requested materials are evidentiary and relevant, are not otherwise procurable through due diligence, are necessary for trial preparation, and are requested in good faith rather than as a fishing expedition.

Rule 17 is not a general discovery device. Only a judge may issue a pretrial summons, and the defense must file a motion. The supporting affidavit may rely on hearsay, but it must identify the source, demonstrate reliability, and establish relevance with specificity.

Platform compliance presents a separate practical problem. Major providers may decline to produce records in response to a state-court summons without a federal court order or warrant. Counsel should investigate early what records still exist, whether the Commonwealth obtained them, and whether a provider will respond to available defense process.

Suppression of Unlawfully Obtained Digital Evidence

The court must separately determine whether police obtained the evidence lawfully. A phone seized without lawful authority, an account searched without a warrant, or a device searched beyond the scope of a warrant may support a motion to suppress. Serpa Law Office addresses those principles in its page on illegal searches and seizures in Massachusetts and its Massachusetts digital-search FAQs.

Police monitoring of social-media accounts also may present a selective-enforcement issue. In Commonwealth v. Rodriguez, 496 Mass. 627 (2025), the Supreme Judicial Court confirmed that the framework applies to police monitoring of social-media accounts, including Snapchat. The court relied on Commonwealth v. Dilworth, 494 Mass. 579, 587-588 (2024), and Commonwealth v. Long, 485 Mass. 711 (2020). A defendant who produces evidence supporting a reasonable inference that race motivated the investigation in part is entitled to an evidentiary hearing and need not show a physical intrusion.

Secret recording presents a different legal issue under the Massachusetts wiretap statute. The firm’s Massachusetts wiretap and secret-recording page addresses when a recording itself may have been obtained unlawfully.

Motions in Limine Addressing Digital Evidence

A motion in limine allows the judge to decide the foundation before jurors see the exhibit. Counsel can request a voir dire outside the jury’s presence and require the Commonwealth to identify the confirming circumstances, hearsay theory, sponsoring witness, and purpose for which it offers the evidence.

Counsel can also preserve an objection through a sufficiently specific pretrial motion. Section 103(b) of the Guide follows Commonwealth v. Grady, 474 Mass. 715 (2016). When a defendant moved before trial to exclude the same evidence on the same ground and the judge heard and denied the motion, counsel need not repeat the objection when the exhibit is offered.

Counsel receives that preservation benefit only for the specific issue presented before trial. A motion challenging whether a witness may testify at all does not necessarily preserve an objection to particular testimony that the witness later gives. The pretrial motion should identify the specific exhibit, statement, and legal ground.

The written motion should also address Section 403. A judge may exclude relevant evidence when its probative value is substantially outweighed by unfair prejudice, confusion, misleading the jury, undue delay, waste of time, or needless cumulative proof. A large set of repetitive screenshots can present a different Section 403 issue from a single complete thread.

Separate grounds may include insufficient confirming circumstances under Section 901(b)(11) and Purdy; failure to establish identity under Bustard; hearsay within the communication or platform record; an incomplete or cropped exhibit; extraction-reliability testimony from an unqualified witness under Cronin; oral testimony offered to prove the content of an electronic record under Salyer; and unfair prejudice under Section 403.

Trial Objections and Motions to Strike

Section 103(a) requires a timely objection or motion to strike on the record. Counsel must state the specific ground unless the context makes it apparent.

Defense counsel should object to the foundation before the court admits the exhibit, request a voir dire of the sponsoring witness when needed, and object when a witness paraphrases a communication that is not in evidence. If the judge admitted evidence de bene and the Commonwealth never supplies the promised connection, counsel should move to strike. When the judge admits a statement for a purpose other than its truth, counsel should request a limiting instruction identifying that purpose.

Completeness and Cropped Conversations

Section 106(a) permits an adverse party to introduce another part of a writing or recorded statement when that part concerns the same subject, belongs to the same writing or conversation, and is necessary to understand the portion already admitted. Defense counsel may use that provision when a screenshot removes the messages immediately before or after the offered statement. Section 106(b) separately governs curative admissibility after evidence has been admitted erroneously.

Section 106 does not compel the admission of unrelated conversations merely because they came from the same account. If the Commonwealth offers threats sent on March 15, messages from February showing a friendly relationship may be relevant, but ordinary admissibility rules govern them. They are not automatically admissible under the completeness doctrine.

Defense Investigation of Digital Evidence

Defense counsel should investigate early to determine what can be proved. Counsel may use an extraction report to identify deleted material, time stamps, account identifiers, and the parameters the officer used. The complete conversation may provide the context surrounding a selected message. Device-custody and account records may help identify who possessed the phone and whether someone accessed the account from more than one device or location.

When a witness supplied screenshots rather than a device, counsel should determine how the images were made, whether any were edited or omitted, whether the original device still exists, and whether the Commonwealth could have obtained a fuller extraction or platform record.

The defense should also identify the legal use for each communication. A message may matter to identity, intent, notice, state of mind, sequence of events, or impeachment. Counsel may need a different foundation and hearsay analysis for each proposed use.

Digital Evidence in Related Massachusetts Cases

Digital evidence frequently becomes important in cases involving criminal harassment, nonconsensual intimate images, and AI-generated or deepfake images. Messages and recordings also appear in domestic-violence cases, 209A abuse-prevention-order proceedings, and 258E harassment-prevention-order proceedings.

Group chats, social-media posts, and campus records may be especially important in college and university student defense. Screenshots attached to police applications also can affect the defense of a clerk-magistrate hearing before a criminal complaint issues.

Attorney Joe Serpa represents defendants in Massachusetts criminal cases involving text messages, social-media communications, phone extractions, screenshots, and digital recordings. The representation may include motions to suppress, motions in limine, evidentiary hearings, cross-examination of the sponsoring witness, and trial. For a confidential consultation, contact Serpa Law Office at 617.936.0201.