Massachusetts Traffic Stops, Exit Orders, and Pretext Searches: Your Rights Under Article 14

Most Massachusetts drug, firearms, and OUI cases begin with a traffic stop. Article 14 of the Massachusetts Declaration of Rights governs every step of a traffic stop and, at nearly every step, gives drivers and passengers more protection than the Fourth Amendment does. Article 14 limits when police may stop a vehicle, how long the stop may last, when officers may order the driver or a passenger out of the car, when officers may frisk, and when officers may search.

Police need a separate justification for each of those actions. A judge can suppress everything police found after any step that lacked a justification. Attorney Joe Serpa has practiced Massachusetts criminal defense since 1995. Attorney Serpa has litigated motions to suppress evidence from vehicle stops in courts across Eastern Massachusetts.

Federal Law and Massachusetts Law Compared

Under the Fourth Amendment, an officer who sees a traffic violation may stop the vehicle whatever the officer’s real motive. Whren v. United States, 517 U.S. 806 (1996). An officer may order the driver out of any lawfully stopped car without further justification, Pennsylvania v. Mimms, 434 U.S. 106 (1977), and may order the passengers out as well. Maryland v. Wilson, 519 U.S. 408 (1997).

An officer may frisk a person only with reasonable suspicion that the person is armed and dangerous. Terry v. Ohio, 392 U.S. 1 (1968). Police may not stop a car at random, without a violation or reasonable suspicion, to check the driver’s license and registration. Delaware v. Prouse, 440 U.S. 648 (1979). The United States Supreme Court limited the search of a car incident to an arrest in Arizona v. Gant, 556 U.S. 332 (2009). Under federal law, an officer’s reasonable mistake about what the traffic code prohibits can still justify a stop. Heien v. North Carolina, 574 U.S. 54 (2014).

The Supreme Judicial Court follows the Whren rule on pretext stops. Commonwealth v. Buckley, 478 Mass. 861 (2018). The Supreme Judicial Court, however, rejected the Mimms and Wilson rule under Article 14 in Commonwealth v. Gonsalves, 429 Mass. 658 (1999). An officer in Massachusetts needs a justification to order a driver or a passenger out of a car.

Massachusetts courts also read the traffic statutes strictly. The question whether the driver committed a violation at all depends on the words of the statute, as the Supreme Judicial Court’s analysis of the marked lanes statute in Commonwealth v. Larose, 483 Mass. 323 (2019), shows. A Massachusetts judge can suppress evidence from a stop that a federal court would uphold.

Massachusetts courts apply Article 14 to evidence offered in a state prosecution, whichever police agency made the stop. A federal judge measures the stop against the Fourth Amendment, not Article 14, when a task force stop or a stop referred to federal prosecutors results in a federal prosecution. Defense counsel therefore needs to know from the first day whether a drug or firearms case will stay in state court.

When Police May Stop a Vehicle

Police may stop a vehicle when an officer has reasonable suspicion of criminal activity or sees a traffic violation. An officer who sees a traffic violation may stop the vehicle whatever the officer’s actual motive. The Supreme Judicial Court adopted that rule in Commonwealth v. Santana, 420 Mass. 205 (1995), and reaffirmed the rule in Commonwealth v. Buckley, 478 Mass. 861 (2018).

Under Santana and Buckley, an officer investigating drugs may stop a car for a lane violation or a defective plate light. Police may not, however, stop a vehicle to investigate a civil infraction that has no public safety component. Commonwealth v. Rodriguez, 472 Mass. 767 (2015). The driver must also have committed an actual violation of the statute as written. Under federal law, an officer who runs the registration may infer that the registered owner is driving, Kansas v. Glover, 589 U.S. 376 (2020), but only when nothing the officer sees contradicts the inference.

Time Limits on a Traffic Stop

Police may hold a car stopped for a traffic violation only as long as the officers reasonably need to address the violation. The officers’ authority to detain the driver ends when the officers finish the tasks related to the violation. Rodriguez v. United States, 575 U.S. 348 (2015). Commonwealth v. Cordero, 477 Mass. 237 (2017).

In Commonwealth v. Daveiga, 489 Mass. 342 (2022), officers resolved a double parking violation and told the driver to move along. Minutes later, the officers tried to stop the car again because the driver’s reaction had made them suspicious. The Supreme Judicial Court held that the officers could not make the second stop.

Police also may not wait an unreasonable time before stopping a driver for a violation they saw earlier. In Commonwealth v. Arias, 497 Mass. 425 (2026), Boston drug unit officers watched a driver commit a civil infraction, made no stop, and called no marked cruiser.

The officers stopped the driver twenty-four hours later and announced over the radio that the stop was for a drug investigation. The Supreme Judicial Court held that the stop violated Article 14. The court set no fixed deadline for the stop. The delay between the observed violation and the stop must be reasonable under the totality of the circumstances. The Commonwealth bears the burden of justifying the delay. The court did not overrule Buckley in Arias. An officer’s pretextual motive alone therefore does not make a stop unlawful. Attorney Serpa analyzes the decision in full in the firm’s post on Commonwealth v. Arias.

The no-fix statute, M.G.L. c. 90C, § 2, requires a police officer to give the driver the citation at the time and place of the violation. The driver has a defense to the motor vehicle charge when the officer fails, without a statutory excuse, to deliver the citation at that time and place.

The Supreme Judicial Court applied the statute in Commonwealth v. Foley, 496 Mass. 320 (2025). The Massachusetts criminal traffic citation and four-day hearing guide explains citation timing, delayed delivery, and the citation defense. The Massachusetts motor vehicle crimes guide identifies the principal charges and consequences governed by the citation statute.

The Odor of Marijuana at a Traffic Stop

The odor of burnt marijuana alone gives police neither reasonable suspicion nor probable cause and does not justify an exit order. Commonwealth v. Cruz, 459 Mass. 459 (2011). The same rule applies to the odor of unburnt marijuana, because no one can tell by smell whether a car holds a criminal quantity of marijuana or a lawful quantity. Commonwealth v. Overmyer, 469 Mass. 16 (2014).

Odor alone does not give police probable cause for a warrantless search of the vehicle. The federal prohibition on marijuana does not change the Massachusetts rule. Commonwealth v. Craan, 469 Mass. 24 (2014). Under Cruz, Overmyer, and Craan, police may not use conduct that is only a civil infraction to justify the steps of a criminal investigation, such as an exit order or a search.

Chapter 65 of the Acts of 2026 raised the marijuana possession limits, effective April 19, 2026. A person at least twenty-one may possess two ounces outside the home. Simple possession through three ounces is civil rather than criminal. The Supreme Judicial Court decided Cruz, Overmyer, and Craan under the one-ounce limit then in force. A judge therefore measures any justification based on odor or quantity against the statute in force on the date of the stop.

Racially Motivated Stops

A judge can suppress the evidence from a stop based on a real traffic violation when race motivated the officer’s decision to make the stop. In Commonwealth v. Long, 485 Mass. 711 (2020), the Supreme Judicial Court lowered the showing a defendant must make to challenge a stop motivated by race.

A defendant does not need statistical evidence. The defendant may point to the totality of the circumstances, including the officer’s questions, the nature of the violation, and the sequence of events, to raise a reasonable inference that race motivated the stop. The judge suppresses the evidence when the Commonwealth fails to rebut the inference of racial motivation.

A driver or passenger may record a traffic stop openly. The page on Massachusetts wiretap law and secret recordings explains the rules for secret recordings. The Supreme Judicial Court’s rule for police body camera recordings at an OUI checkpoint is the subject of the firm’s post on Commonwealth v. Grimaldi.

Exit Orders Under Article 14

Under Mimms and Wilson, federal law allows an officer to order the occupants out of any lawfully stopped vehicle without further justification. The Supreme Judicial Court rejected that federal rule under Article 14 in Commonwealth v. Gonsalves, 429 Mass. 658 (1999), and set out the Massachusetts standard in Commonwealth v. Torres-Pagan, 484 Mass. 34 (2020).

An officer may order a driver or passenger out of a lawfully stopped car only for one of three reasons. The three reasons are a reasonable belief by the officer that safety is threatened, reasonable suspicion of criminal activity beyond the traffic violation, and a pragmatic reason for the order, such as the need to conduct an independently lawful search. Nervousness, furtive movement, or the character of the neighborhood, standing alone, does not justify an exit order. Commonwealth v. Barreto, 483 Mass. 716 (2019).

Police who have reasonable suspicion, based on specific and articulable facts, that an occupant is committing or is about to commit a crime may take only the steps proportionate to that suspicion. An exit order is a proportionate step when the order is reasonably necessary to conduct the threshold inquiry or to prevent flight. Commonwealth v. Bostock, 450 Mass. 616 (2008).

For an exit order based on safety, the Commonwealth does not have to prove that the occupant was armed. The Commonwealth must identify facts that, taken together, gave the officer a heightened and objectively reasonable awareness of danger. Repeated movements consistent with reaching beneath a seat or hiding an object can meet that standard. The officer may rely on the driver’s earlier movements even when the driver appears calm at the moment the officer gives the order. Commonwealth v. Stampley, 437 Mass. 323 (2002).

The Patfrisk Standard

A lawful exit order does not permit the officer to frisk the person who steps out of the car. In Torres-Pagan, the Supreme Judicial Court held that an exit order and a patfrisk require separate justifications. A patfrisk requires reasonable suspicion, based on specific and articulable facts, that the person is armed and dangerous.

Massachusetts courts apply the Terry standard strictly. An officer who lawfully orders a driver out for safety reasons still needs reasonable suspicion that the driver is armed and dangerous before touching the driver’s clothing. A judge suppresses evidence found in a frisk that went beyond a search for weapons.

Reasonable suspicion of ordinary criminal activity is not the same as reasonable suspicion that the person is armed. A judge asks whether the police were lawfully present and whether the officer had an objectively reasonable basis to believe that the particular person frisked was likely armed and dangerous.

The judge may consider suspicion of a drug offense in deciding whether the person was likely armed, but suspicion of a drug offense does not create a presumption that the person is carrying a weapon. Commonwealth v. Cabrera, 76 Mass. App. Ct. 341 (2010). The officer may do only what is minimally necessary to learn whether the person has a weapon. The frisk is ordinarily a patdown of the outer clothing, not a search for drugs or other contraband. Commonwealth v. Amado, 474 Mass. 147 (2016).

The Rights of Passengers

Police who stop a car seize the passengers as well as the driver. Brendlin v. California, 551 U.S. 249 (2007). Police need a separate justification for every exit order, frisk, or search directed at a passenger. The defendant in Cruz was a passenger. The Supreme Judicial Court held the exit order unlawful because no evidence connected the passenger to any crime. Police may not rely on suspicion of the driver to justify an exit order, frisk, or search of a passenger. A frisk of a passenger requires reasonable suspicion that the passenger is armed and dangerous.

A search of a passenger’s person or bag requires its own justification. Police routinely investigate the passengers as well as the driver during a drug investigation stop. A passenger may move to suppress evidence and challenge each step of the encounter in the same way as the driver.

Bags and Other Belongings

Massachusetts courts apply a separate rule to a backpack, a purse, or a bag on the seat, because a bag is neither the vehicle nor the person. The facts that justify a patfrisk of a person can also justify a protective patdown of a bag that the person is carrying or could reach.

The officer may pat down the bag only to locate a weapon and to dispel the danger the officer identified. The officer may not open the bag and examine its contents for evidence as part of a protective patdown. Commonwealth v. Whitehead, 85 Mass. App. Ct. 134 (2014).

Any search of a bag beyond a protective patdown requires a separate legal basis. Each legal basis has its own limits. Consent is one legal basis. The Commonwealth must prove that the person’s consent was voluntary, not mere submission to a claim of police authority. The Commonwealth must also prove that the search stayed within the scope a reasonable person would have understood the consent to cover. Commonwealth v. Ortiz, 478 Mass. 820 (2018).

A search incident to a lawful arrest is a second legal basis. In Massachusetts, a search incident to an arrest is limited to removing weapons and obtaining evidence of the offense of arrest. A search of a bag incident to an arrest must be contemporaneous with the arrest in both time and place. Commonwealth v. Pierre, 72 Mass. App. Ct. 580 (2008).

The automobile exception is a third legal basis. Police who have probable cause to believe that a mobile vehicle contains contraband or evidence may search the containers inside the vehicle. Commonwealth v. Bostock, 450 Mass. 616 (2008). The automobile exception does not allow police to search a person’s body.

Article 14 requires probable cause before police conduct a strip search or a visual body cavity search. The search must also be reasonable in its scope, in the manner in which police conduct the search, in the justification offered for the search, and in the place police choose for the search. Commonwealth v. Amado, 474 Mass. 147 (2016).

Defense counsel challenges the exit order, the frisk, and any search of a bag, in that order, in a motion to suppress. The judge first decides whether one of the three permitted reasons justified the exit order. The judge then decides whether the officer had particularized reason to believe that the person frisked was armed and dangerous. For a bag that police opened rather than patted down, the judge decides which exception the Commonwealth relied on and whether the search stayed within that exception.

Searches of the Vehicle

Under the automobile exception, police may search a car without a warrant only with probable cause that the car contains evidence or contraband. Police often treat a search incident to an occupant’s arrest as broader than the law allows. Police may search the passenger compartment incident to an arrest only when the arrested person is unsecured and within reach of the compartment, or when the vehicle may contain evidence of the offense of arrest. Arizona v. Gant, 556 U.S. 332 (2009). Police may also conduct an inventory search after a valid impoundment. Each of these three searches has its own requirements.

Defense counsel often contests whether police met the requirements of the search they conducted. The odor of marijuana alone does not give police probable cause to search a car. Police may not use an inventory search as a pretext for an investigative search. The decision to impound the car must itself be reasonable before police begin any inventory.

A driver never has to consent to a search of the car. A driver who consents gives up challenges to the search that could otherwise succeed. The page on Illegal Searches and Seizures in Massachusetts explains the rules for searches of containers, phones, and homes.

Phones, Passcodes, and the Fruit of the Poisonous Tree

Police may seize a phone incident to an arrest, but police need a warrant to search the phone. Riley v. California, 573 U.S. 373 (2014). The Supreme Judicial Court applied the same warrant requirement to other digital devices under Article 14. Commonwealth v. Mauricio, 477 Mass. 588 (2017).

A warrant to search a phone must state with particularity what police may look for and the period of time the search may cover. Commonwealth v. Snow, 486 Mass. 582 (2021). A judge may order a person to enter a passcode only under the narrow foregone conclusion doctrine. The doctrine applies only when the Commonwealth proves that the person knows the passcode. Commonwealth v. Jones, 481 Mass. 540 (2019). An officer who asks at the roadside to look at a phone is asking for consent. A person who consents gives up the warrant protection.

Under the fruit of the poisonous tree doctrine, a judge suppresses both the evidence police found in an unlawful search or seizure and the evidence derived from that search or seizure. Wong Sun v. United States, 371 U.S. 471 (1963). A judge who finds the stop unlawful can suppress the evidence from the exit order and the frisk that followed the stop.

The judge can also suppress a phone found in a pocket during the frisk, the statements the person made at booking, and evidence obtained under a later warrant whose affidavit depends on the suppressed evidence. The Commonwealth bears the burden of proving that the evidence it offers was not derived from the unlawful conduct. In a case involving digital evidence, the judge applies the fruit of the poisonous tree doctrine to evidence from later searches of phones, computers, and databases. The page on Phone, Computer, and Digital Device Searches in Massachusetts explains the rules for searches of phones and computers.

Location Data, License Plate Readers, and the Hands-Free Law

The Supreme Judicial Court required warrants for location tracking before the United States Supreme Court did, beginning with GPS tracking of cars. GPS monitoring of a vehicle is a search under Article 14 that requires a warrant. Commonwealth v. Connolly, 454 Mass. 808 (2009). A passenger has standing to challenge GPS monitoring of the vehicle. Commonwealth v. Rousseau, 465 Mass. 372 (2013).

Police need a warrant to obtain historical cell site location information. Commonwealth v. Augustine, 467 Mass. 230 (2014). The United States Supreme Court later adopted the same warrant requirement in Carpenter v. United States, 585 U.S. 296 (2018). Massachusetts courts analyze automatic license plate readers under the mosaic approach of Commonwealth v. McCarthy, 484 Mass. 493 (2020).

Under the mosaic approach, police queries of a camera network can amount to a search when the cameras are numerous and widespread enough to track a person’s movements over time. In discovery, defense counsel requests the data police obtained from GPS devices, cell site records, and license plate readers before and after the stop.

Police may stop a driver for a violation of the hands-free law, M.G.L. c. 90, § 13B. A driver violates § 13B by holding or using a mobile electronic device while driving. Defense counsel compares what the officer says the driver was doing with any video recording of the stop.

What to Do During a Stop

Give the officer your license and registration. No law requires a driver or passenger to answer investigative questions. In vehicle stop cases, a driver’s statements at the roadside often harm the defense more than the physical evidence does. Do not argue with the officer about whether the stop is legal. Defense counsel challenges the legality of the stop later, in a motion to suppress. See Your Right to Remain Silent in Massachusetts. Direct answers to common questions appear in the Massachusetts Traffic Stop FAQs.

Clients in Vehicle Stop Cases

Vehicle stop cases involve nearly every kind of client. How a vehicle stop case affects a client’s job, license, schooling, or immigration status depends on who the client is. Police often make pretext stops of commuters on Route 128, I-93, and the Massachusetts Turnpike. Rideshare and delivery drivers earn their living in their vehicles.

A license suspension or a drug charge can end a rideshare or delivery driver’s income. Federal and state law disqualify a commercial driver’s license for offenses that do not affect an ordinary license. A commercial driver whose commercial driver’s license is disqualified cannot work in a job that requires that license, whatever the outcome of the criminal case.

Police who impound a tradesperson’s work van conduct an inventory search of the tools, materials, and paperwork inside the van. Massachusetts does not recognize a license to carry issued by another state. A gun owner who is stopped while traveling through Massachusetts with an out-of-state license to carry can face a felony firearms case.

A university student can face campus discipline in addition to the criminal case. A licensed professional may have to report the charge to a licensing board after the arraignment. A non-citizen who receives a conviction or a continuance without a finding on a drug or firearms charge can face deportation, denial of a green card, or denial of citizenship under federal immigration law.

A parent charged with OUI while driving with children in the car can also face a report to the Department of Children and Families under M.G.L. c. 119, § 51A. Passengers have their own rights at every step of the stop, even though they had no control over the driving. See Massachusetts Firearms Defense and OUI and Motor Vehicle Defense.

Defending a Vehicle Stop Case

Defense counsel examines each step of the encounter. Counsel first determines whether the driver committed the claimed violation under the statute as written. Counsel then compares the time the officer saw the violation with the time of the stop. Under Arias, the defense may challenge an unreasonable delay between the violation and the stop.

Counsel therefore obtains the police computer-aided dispatch records, the radio traffic, and the time the officer issued the citation under M.G.L. c. 90C, § 2. Counsel determines how long the stop lasted and whether the officers held the driver longer than the officers needed to address the violation. Counsel examines what justified each exit order, for the driver and for each passenger, what facts independently supported any frisk, and what justified each search that followed.

In a case involving digital evidence, counsel also examines each search of a phone or of vehicle data. Counsel determines whether a warrant authorized each search, whether the warrant described with particularity what police could search for, whether the warrant affidavit relied on unlawfully obtained evidence, and what location or license plate data police queried before the stop.

A judge who finds any step unlawful can suppress the evidence derived from that step. The Commonwealth often dismisses a drug, firearms, or OUI charge after a judge suppresses the evidence from the stop.

Courts Where Serpa Law Office Litigates Vehicle Stop Cases

Serpa Law Office litigates suppression motions from traffic stops in the Suffolk, Middlesex, and Norfolk Superior Courts and in the following District Courts and Boston Municipal Court divisions.

• Boston Municipal Court (all divisions, including Central, Brighton, Charlestown, Dorchester, East Boston, Roxbury, South Boston, and West Roxbury)
• Cambridge District Court
• Somerville District Court
• Newton District Court
• Brookline District Court
• Waltham District Court
• Malden District Court
• Woburn District Court
• Concord District Court
• Framingham District Court
• Dedham District Court
• Quincy District Court
• Hingham District Court

See the full list of 48 District Court and BMC divisions at Courts We Serve Across Greater Boston. 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.

Related Serpa Law Office resources

• The Modern Massachusetts Traffic Stop: Phones, GPS, and License Plate Readers
• Massachusetts Traffic Stop FAQs
• Illegal Searches and Seizures in Massachusetts
• Your Right to Remain Silent in Massachusetts
• Massachusetts Motor Vehicle Crimes and the Uniform Citation
• OUI and Motor Vehicle Defense
• Massachusetts Firearms Defense
• Your Fifth Amendment Right to Refuse a Passcode in Massachusetts
• Clerk-Magistrate Hearings in Massachusetts
• Courts We Serve Across Greater Boston
• Massachusetts Criminal Defense Results
• Massachusetts Phone and Computer Search FAQs