Massachusetts Phone and Computer Search FAQs

No, with narrow exceptions. Police may seize a phone incident to a lawful arrest, but they may not search it without a warrant. Riley v. California, 573 U.S. 373 (2014). The Supreme Judicial Court applies the same rule to other digital devices under Article 14. Commonwealth v. Mauricio, 477 Mass. 588 (2017). An officer’s request to take a quick look at a person’s phone is a request for consent, which the person may refuse.

Generally no. The Commonwealth can compel a person to enter a passcode only under the foregone conclusion doctrine, which requires the Commonwealth to prove beyond a reasonable doubt that the person knows the code. Commonwealth v. Jones, 481 Mass. 540 (2019). The Commonwealth usually proves that the person knows the code with the person’s own statements, such as an admission that the phone belongs to the person, or with evidence that the person unlocked the phone at booking. The person should say nothing about ownership or codes and should ask for a lawyer. More detail is in Your Fifth Amendment Right to Refuse a Passcode in Massachusetts.

The law on compelled biometric unlocking is still developing. Courts have divided on whether the compelled use of a face or fingerprint to unlock a phone is testimonial, like the compelled entry of a passcode. A person should not volunteer to unlock the phone and should speak with counsel before complying with any demand to unlock it. The privilege against self-incrimination gives more protection to a phone locked by a passcode than to a phone that unlocks by face recognition.

No. The warrant must be particular about what police may look for and where on the device they may look. Massachusetts courts also enforce time limits, so a warrant based on conduct within a short period does not authorize police to search years of photos and messages. Commonwealth v. Snow, 486 Mass. 582 (2021). Extraction tools copy everything on the device by default, so defense counsel can challenge the scope of the warrant in nearly every device case.

No. The affidavit must show a particularized connection between the device and the crime. The SJC has rejected the assumption that anyone who commits a crime probably has evidence of it on their phone. Commonwealth v. White, 475 Mass. 583 (2016). Defense counsel challenges warrants based on the boilerplate assumption that a person who commits a crime probably has evidence of it on a phone.

Generally only with a warrant. Police need a warrant to obtain historical cell site location information in Massachusetts, Commonwealth v. Augustine, 467 Mass. 230 (2014). A request for six hours or less of that information does not require a warrant, Commonwealth v. Estabrook, 472 Mass. 852 (2015). Police who cause a phone to reveal its real-time location conduct a search under Commonwealth v. Almonor, 482 Mass. 35 (2019). Under Commonwealth v. Perry, 489 Mass. 436 (2022), a tower dump requires a warrant with protocols that protect uninvolved people. Under Commonwealth v. McCarthy, 484 Mass. 493 (2020), police who gather license plate reader data conduct a search when enough cameras in enough locations reveal a substantial picture of a person’s public movements.

The providers of email, messaging, and social media accounts store the account content. Police obtain the content by serving legal process on the provider. The defense can contest what police demanded, what the provider produced, whether the provider preserved content before a court issued a warrant, and how police obtained the content. At trial, counsel must separately address authentication, authorship, hearsay, completeness, and the foundation of any extraction report. Serpa Law Office’s digital-evidence guide explains how judges handle digital evidence at trial. The firm’s Massachusetts Text Message and Phone Evidence FAQs compare how courts treat text messages and phone evidence in different proceedings. Article 14 can protect against government access that federal law would allow.

A judge can suppress evidence that police obtained as a result of an unlawful stop. Under the fruit of the poisonous tree doctrine, an unlawful stop, exit order, or frisk can taint the seizure of the phone, the warrant that police obtained while they held the phone, and the later extraction. Wong Sun v. United States, 371 U.S. 471 (1963). A judge who finds that the stop was unlawful will often suppress the phone evidence as well. Without the phone evidence, the Commonwealth often cannot continue the case. The stop rules are at Massachusetts Traffic Stops, Exit Orders, and Pretext Searches.

Federal agents claim authority under the border search exception to search devices at the border without a warrant, subject to limits that the federal courts are still defining. Evidence from a device searched at the border can be used in a Massachusetts state prosecution. The application of Massachusetts suppression law to a federal border search raises separate legal questions. Travelers whose devices hold sensitive data should limit the data they bring across the border.

No. A person who consents gives up the warrant requirement, the nexus requirement, and the particularity limits all at once. People who believe the phone will clear them are usually wrong about what police will find in a full extraction. The person asked to consent should provide identification, decline all searches, and ask for a lawyer.

No. A person who deletes evidence once an investigation is underway can be charged with obstruction or intimidation of a witness under M.G.L. c. 268, § 13B, a felony that is frequently punishable more severely than the underlying offense. The person should not wipe, delete, or alter anything. The person should preserve the device and let defense counsel deal with what is on it.

Rarely. The defense is entitled to discovery of the full extraction under Rule 14. The complete record often contains what the police report leaves out, such as the messages before the screenshot, deleted content that undermines the timeline, and metadata and location data that support a different account of events. In an appropriate case, a defense forensic examiner reviews the forensic image of the device independently. A person whose case involves a seized device can contact Serpa Law Office at 617.936.0201 for a free consultation. Boston office: 20 Park Plaza #400A. Quincy Office: 500 Victory Road, Suite 400A.

Audio recordings found on a device raise separate wiretap questions, which Serpa Law Office covers in its wiretap and secret recording FAQs.

Yes, in several ways at once. The first issue is how police or the plaintiff obtained the messages. The answer depends on whose device the messages came from, because a sender generally cannot suppress messages found on the recipient’s phone. Commonwealth v. Delgado-Rivera, 487 Mass. 551 (2021). Authentication is the second issue. Accounts can be shared or spoofed, so the party offering the messages must prove who wrote them. The third issue is the excerpt itself, because the plaintiff’s screenshot rarely shows the full thread. Defense counsel often uses the complete extraction as an exhibit in a violation case to show who initiated the contact and what came before. See the 209A Restraining Order and 258E Harassment Prevention Order Violation FAQs.

The Commonwealth’s ability to use the phone evidence depends on whether the stop was lawful. A judge can suppress the phone and the evidence from any warrant that police obtained while holding the phone if the stop, the exit order, the frisk, or the vehicle search was unlawful. Defense counsel examines the stop first in every device case, because a judge’s finding that the stop was unlawful often results in suppression of the phone evidence. The stop rules are at Massachusetts Traffic Stops, Exit Orders, and Pretext Searches.

Largely yes. Campus police are police, so the warrant, nexus, and particularity rules apply to them. Student cases are more complicated because the university has separate authority over its own network, housing, and disciplinary process. The university disciplinary process proceeds at the same time as the criminal case. The university and the Commonwealth can each use evidence gathered in the other proceeding. A student facing both the university process and the criminal case should defend them together, not sequentially. See College and University Student Criminal Defense.

The judge suppresses the evidence. The Commonwealth cannot use the suppressed evidence in its case. Evidence derived from the suppressed evidence is also excluded as fruit of the poisonous tree, unless the Commonwealth proves an independent source, inevitable discovery, or attenuation. In a digital case, the derived evidence can include the extraction, the results of a later warrant, and the evidence for any charge based on what the extraction found. In drug, firearms, and fraud prosecutions, the Commonwealth usually cannot prove the charge without the suppressed evidence. The case then ends in dismissal. The Commonwealth can seek interlocutory review of a suppression order under Rule 15, so the judge’s order is not always final. An order suppressing evidence still changes the case substantially, even when the Commonwealth appeals the order.

Not automatically. A suppression order prohibits the Commonwealth from using the suppressed evidence, but the order does not dismiss the complaint. The case ends when the Commonwealth cannot prove the elements of the charge without the suppressed evidence, which is the usual result when the Commonwealth’s case depended on the drugs, the gun, or the device. The Commonwealth can continue a weakened prosecution if independent evidence exists. A weakened case changes any plea negotiations after the suppression order. Representative outcomes are collected at Massachusetts Criminal Defense Results.