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MASSACHUSETTS DRUGGED DRIVING ACCIDENT LAWYER

Impaired driving can cause lasting harm.

Drugged driving is a preventable crime, and when an impaired driver injures you, Massachusetts law lets you hold that driver accountable for the full harm the crash has caused you.

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How a drugged driving claim works

A drugged driving crash is not an accident in the ordinary sense. Someone chose to drive while impaired by marijuana, illegal drugs, or a prescription that should have kept them off the road, and that choice put everyone around them in danger. When it causes a crash, the harm is the same as any serious wreck, but cause is a decision the law treats as criminal, and that changes how the case is built and how a jury sees it.

Drug impairment is different from alcohol in one important way. There is no single number, no equivalent of the point-oh-eight blood-alcohol line, that proves impairment for most drugs. Instead, these cases are built from the police investigation, chemical testing, the observations of trained drug recognition officers, and the driver’s own conduct at the scene. That makes the evidence more complex, and it makes gathering it early, before it fades or disappears, more important than in a typical crash.

It also matters that the criminal case and your injury claim are separate. You do not need the driver to be convicted, or even charged, to bring a civil claim; the two proceed on different tracks and different standards of proof. A criminal conviction can help, but its absence does not end your case, and waiting for the criminal process to finish can quietly cost you time you need for the civil claim. Understanding how the two fit together is part of protecting your rights.

Drugged driving has become more common as more substances are legal to buy, but legality behind the wheel is a different question entirely. A driver can lawfully use marijuana or take a prescribed medication and still be too impaired to drive safely, and when that impairment causes a crash, the driver is responsible for the harm. The law focuses on the effect on driving, not on whether the substance was allowed, and that distinction is often where these cases are won or lost.

For the people hurt in these crashes, the hardest part is often the sense that it never should have happened. Unlike a genuine accident, a drugged driving crash traces back to a decision, and that changes how survivors experience the injury and how a claim is framed. The law does not punish the driver twice in a civil case, but it does allow a full accounting of the harm that decision caused, and pursuing that accounting is both a practical step toward recovery and a way of holding the driver responsible.

Massachusetts sees impaired-driver crashes involving every kind of substance, from alcohol combined with drugs to marijuana to misused prescriptions, and the mix can complicate both the criminal case and the civil claim. What stays constant is the core question: was the driver impaired, and did that impairment cause the crash. Keeping the focus on that question, and building the evidence to answer it, is how a drugged driving claim stays strong even when the facts are tangled.

Larson Law helps people across Massachusetts who were hurt by an impaired driver understand what their claim involves and what it may be worth. Daniel J. Larson reviews the criminal and civil issues these crashes raise and identifies every source of recovery, bringing the same care a Boston personal injury attorney gives any serious case, with direct attorney access throughout. The review is free, and there is no obligation.

What our clients say

Jeffrey K.
Attorney Larson or Dan as I refer to him now is a phenomenal lawyer who has turned into a friend. He is knowledgeable, smart, extremely thorough and aggressive. He knows the law and delivers fantastic results in a timely fashion. I consider him a great partner and someone I always want to have in my court/corner when I need legal guidance, and support.
Samantha N.
I can’t say enough wonderful things about Dan and his personal injury firm. I’ve seen firsthand how dedicated, knowledgeable, and compassionate he is. Dan is the type of car accident attorney who truly goes above and beyond—he communicates clearly, fights hard for his clients, and genuinely cares about getting them the best possible results.
Jamal B.
Dan and the whole team at Larson Law were super helpful and informative, they were able to walk me through the whole process of my case and they did everything to make sure that I received proper compensation for the incident that happened to me. And I am glad to say that I am very satisfied with the services provided to me by Larson Law. Great team!
Megan A.
Dan was amazing to work with after my car accident. He kept me updated the whole time, explained everything clearly, and always responded quickly. Great communication and a great outcome—highly recommend!
Johnny M.
Dan helped me with a car accident and it was so easy and he is very communicative and reallly helps you out with all he can! Thanks again Dan!
Sina A.
Dan is the Man. He helped me recover from my car accident and the communication and whole process was smooth sailing. Thank you Dan. God speed.
Lee L.
Attorney Larson of Larson Law Did a great job with my case.. I was in a auto accident in 2024 Attorney Larson took my personal injury case and in 2025 I received a maximum payout. Anytime I had a question or concern he was always available.
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How Massachusetts treats impaired driving.

A drugged driving claim runs on the same framework as any Massachusetts crash case, but the driver’s illegal conduct adds weight to it. Understanding how the pieces fit is the first step.

Drugged driving is a crime

Under G.L. c. 90, §24, it is a crime to operate a motor vehicle while under the influence of marijuana, narcotic drugs, depressants, or stimulant substances. This matters to a civil claim because a driver who breaks that law and injures someone has done more than make a mistake; they have violated a safety statute meant to protect the public. That violation is powerful evidence of negligence, and it often shapes how an insurer evaluates the case and how a jury would view it.

Proving fault and comparative negligence

Massachusetts uses modified comparative negligence under G.L. c. 231, §85, which lets you recover as long as your share of fault is not greater than the other side’s, with any award reduced by your percentage. This matters because even when a driver was clearly impaired, insurers may try to assign you part of the blame to reduce what they pay. In a drugged driving case the impaired driver’s conduct usually dominates the fault picture, but that has to be established with the evidence, not assumed.

The tort threshold and no-fault benefits

After a crash, G.L. c. 90, §34M Personal Injury Protection pays early medical bills and part of lost wages regardless of who was at fault, and G.L. c. 231, §6D sets the threshold you must cross to recover pain and suffering from the impaired driver, either more than two thousand dollars in medical expenses or a serious injury such as a fracture or permanent disfigurement. This matters because PIP is only a starting point; the real value of a serious injury from an impaired-driver crash lies in the pain and suffering claim the threshold unlocks.

The deadline to act

Under G.L. c. 260, §2A, the statute of limitations for a personal injury claim in Massachusetts is three years from the date of the accident. This matters in drugged driving cases because people often wait for the criminal case to resolve before thinking about a civil claim, and that wait can eat into the time available. The civil deadline runs on its own clock, separate from the criminal process, so acting early protects both the claim and the evidence.

Disclaimer: Statute of limitations rules can vary significantly by state, jurisdiction, and the specific type of claim. The information above is general in nature. Please consult a qualified attorney for advice specific to your situation.

These rules work together in a way that usually favors the injured person. The criminal statute supplies strong evidence of fault, comparative negligence rarely shifts much blame onto a sober victim, and the seriousness of the injuries typically clears the tort threshold with room to spare. What remains is proving the full extent of the harm and connecting it cleanly to the crash, which is where careful, early work makes the difference.

None of this rewards waiting. Toxicology results, the police investigation, dashcam and surveillance footage, and witness memories are all strongest close to the crash and fade or disappear over time. Preserving that evidence early is not about rushing to sue; it is about making sure that when the time comes to prove both the impairment and the harm, the proof still exists.

Responsibility can also reach beyond the driver. If the impaired driver was working at the time, on a delivery, a job-site run, or any task for an employer, that employer may share liability for the crash. Where a vehicle was negligently entrusted to someone known to be impaired, the owner may be responsible as well. Identifying every party who may answer for the crash matters, because a single insurance policy is not always enough to cover the harm a serious impaired-driver crash causes.

The criminal investigation is one of the most valuable resources in a drugged driving case, and it is time-sensitive. Police reports, toxicology results, body-camera and dashboard footage, booking records, and the results of any field evaluations all document the driver’s condition at the crucial moment, and much of it can be obtained and preserved through the right channels. Because some of this evidence is held only for a limited time, and because civilian witnesses’ memories fade, moving early to secure it can be the difference between a claim resting on solid proof of impairment and one that becomes a dispute about what really happened.

In practice, that means the strongest drugged driving cases are the ones where a lawyer became involved early, while the proof of impairment was still fresh and fully preserved.

Where drugged driving crashes happen

Drugged driving crashes happen across Massachusetts, on highways and back roads, in daylight and at night, and they injure every kind of road user. Where and how the crash happened shapes the evidence and the claim.

Impairment is proven differently than most people expect. Because there is no universal legal limit for most drugs, these cases rely on the arresting officer’s observations, standardized field sobriety and drug recognition evaluations, and chemical testing of blood or other samples. The results of the criminal investigation, the police report, the toxicology, and any charges, become important building blocks of the civil claim, which is one more reason to involve a lawyer early enough to preserve them.

Drivers, passengers, and other vehicles

The people most often hurt are those in other vehicles. An impaired driver drifting out of a lane or running a light can cause a violent Boston car accident, and when a large commercial vehicle is involved the forces are far greater, the kind of case a Boston truck accident claim addresses. A rider has almost no protection in these crashes, so a Boston motorcycle accident caused by an impaired driver is frequently catastrophic.

Pedestrians and cyclists

Vulnerable road users bear the worst of it. An impaired driver who fails to see a crosswalk can seriously injure someone on foot, the situation a Boston pedestrian accident claim involves, and a cyclist struck by a drugged driver, the focus of a Boston bicycle accident claim, often suffers life-altering harm. These cases turn on establishing the driver’s impairment and the victim’s lawful presence on the road.

When a crash is fatal

At their worst, impaired-driver crashes take lives. When that happens, a Boston wrongful death claim allows the family to pursue the losses the death caused, and the driver’s criminal conduct can bear on the case. These are the hardest cases to carry, and they demand both care and resolve.

Because the cause of a drugged driving crash is a person’s choice, one of the first tasks in any case is documenting exactly what that choice was, through the police investigation, the toxicology, and the scene, before the record cools. That work determines how clearly fault can be shown and how fully the harm can be pursued.

Timing and conditions often play a role. Impaired-driver crashes cluster at night and on weekends, when detection is harder and roads are less forgiving, and impairment magnifies every other risk, a wet road, a dark curve, a moment of inattention. None of that excuses the driver; it simply explains why these crashes are so often severe, and why reconstructing exactly how the crash unfolded is an important part of the claim.

The vehicles involved shape the case as much as the location. A crash between two passenger cars, a collision with a commercial truck, and a strike on a motorcyclist, cyclist, or pedestrian each involve different forces, different injuries, and sometimes different insurance. Matching the claim to the specific crash, who was involved, how it happened, and what coverage applies, is part of building it accurately rather than treating every impaired-driver crash the same.

What an impaired-driver crash costs.

The cost of an impaired-driver crash is the same as any serious wreck, medical bills, lost income, lasting pain, but it arrives with an added weight: the knowledge that it was entirely preventable. A claim should account for the full arc of that harm.

Medical care is usually the first and largest category, from the emergency room through surgery, rehabilitation, and any future treatment the injuries require. Serious crashes often cause harm that outlasts the initial recovery, and a claim has to project those future costs, not just tally the bills already paid, which usually takes a treating physician’s view of the road ahead.

Lost income matters just as much and is easy to undercount. A serious injury can cost weeks or months of work, and where it leaves lasting limitations, it can reduce what a person is able to earn for years to come. That reduced earning capacity is a recoverable loss in its own right, separate from the wages missed during the initial recovery.

Then there is the human cost. The pain, the disruption to daily life, and the psychological aftermath of being hurt by someone who chose to drive impaired are exactly what pain and suffering damages are meant to address. Crash survivors often carry anxiety, sleeplessness, and trauma long after the physical injuries heal, and that lasting effect belongs in the claim.

Because the crash was caused by criminal conduct, insurers sometimes expect these cases to settle quickly and quietly. They do not always account for the full future cost or the weight a jury would give to a driver’s choice to drive impaired. Countering that takes a fully documented claim, built patiently, that reflects the whole loss rather than the insurer’s early, convenient version of it.

When a crash is fatal, the losses shift to the family, and Massachusetts law allows them to pursue the financial and personal harms the death caused. These claims are never about replacing a person; they are about holding the responsible driver accountable and protecting the family’s future after an entirely preventable loss.

There is a particular kind of harm in being injured by a preventable crime. Survivors of impaired-driver crashes frequently describe anger and a loss of trust alongside the physical pain, and many develop lasting anxiety about driving or riding in cars. These are real injuries, and Massachusetts law treats the psychological aftermath of a serious crash as part of the harm a claim addresses. Documenting it honestly, through treatment and a clear account of how daily life changed, is part of capturing the full weight of what the crash took.

Uninsured and underinsured coverage often matters in these cases. Impaired drivers are more likely to be uninsured or to carry minimal coverage that cannot begin to meet a serious injury, and when that happens, the injured person’s own uninsured or underinsured motorist policy may be the most important source of recovery. Reviewing every policy that might apply, the at-fault driver’s, your own, and sometimes a household member’s, is part of making sure a serious loss is not left undercompensated because the person who caused it could not pay.

Because these losses can stretch for years, valuing them well takes more than adding up the bills to date. Serious injuries can mean future surgeries, ongoing therapy, and a reduced ability to work, and a claim that stops at the present understates the true cost. Building a full projection of the future, supported by medical and, where needed, vocational input, is what lets a settlement reflect the whole loss rather than only its first chapter.

In the end, a full and careful accounting is what separates a fair recovery from a rushed one.

Medical Bills and Future Care

Lost Wages and Earning Capacity

Pain, Suffering, and Trauma

Wrongful Death of a Loved One

Hit by an impaired driver? Do these three things now.

Call police, then get medical care.

Call 911 so the crash and any impairment are investigated on the record, and get care right away, because the police report and treatment file are the documents this drugged driving claim is built on.

Document the scene and that driver.

Photograph the vehicles, the scene, and your own injuries, and note the driver’s behavior, because signs of impairment and the physical evidence can fade so fast and later prove who caused this crash.

Talk to a lawyer before an insurer.

Speak with a lawyer before giving any statement, because an insurer may shift blame or settle early, and having the impairment and your injuries documented first protects the full value of your claim.

Talk to a drugged driving accident lawyer today.

If an impaired driver has injured you or taken someone you love, you do not have to face it alone. Larson Law will review what happened, explain how Massachusetts law applies, and pursue the full value of your claim. Call today for a free, no-obligation consultation, and pay nothing unless we recover for you.

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Larson Law helps injured people and families across Massachusetts after a serious accident. If you were hurt by someone else’s carelessness in Boston, we are ready to listen and explain your options at no cost.

Personal injury law in Boston answered directly.

What counts as drugged driving?

It means operating a vehicle while impaired by marijuana, illegal drugs, or even prescription or over-the-counter medication that affects the ability to drive safely. What matters is impairment behind the wheel, not whether the substance was legal to possess.

Yes. Under G.L. c. 90, §24, it is a crime to operate a motor vehicle while under the influence of marijuana, narcotic drugs, depressants, or stimulant substances. That violation is also strong evidence of negligence in a civil claim.

No. Your civil claim is separate from the criminal case and uses a lower standard of proof. A conviction can help, but you can recover even if the driver is never charged or is acquitted, because the two proceed on different tracks.

Through the police investigation: officer observations, field sobriety and drug recognition evaluations, and chemical testing of blood or other samples. Because most drugs have no set legal limit, these cases rely on that combined evidence rather than a single number.

It can still be drugged driving. A driver impaired by a prescription or over-the-counter drug, even one taken as directed, can be held responsible if that impairment caused the crash. The question is impairment and its effect on safe driving.

If your injury crosses the threshold in G.L. c. 231, §6D, either more than two thousand dollars in medical expenses or a serious injury such as a fracture or permanent disfigurement, you can pursue pain and suffering from the impaired driver.

You can still recover under G.L. c. 231, §85 as long as your share of fault is not greater than the other side’s, with any award reduced by your percentage. Impairment usually places most of the fault on the drugged driver.

Yes. After a crash, G.L. c. 90, §34M PIP pays early medical bills and part of lost wages regardless of fault. But PIP does not cover pain and suffering, which is pursued separately from the at-fault driver.

Under G.L. c. 260, §2A, you generally have three years from the date of the crash. The civil deadline runs separately from the criminal case, so it is best not to wait for that process to finish before acting.

You may still have options, including your own uninsured motorist coverage, and the police investigation can help identify the driver. A lawyer can pursue every available source of recovery even when the at-fault driver is hard to find.

When an impaired-driver crash is fatal, a wrongful death claim allows the family to pursue the losses the death caused, and the driver’s criminal conduct can bear on the case. These claims hold the responsible driver accountable.

Cases are handled through Larson Law under the direction of Daniel J. Larson, whose background and credentials are on his attorney profile. You get direct attorney access throughout, not a call center.

Results Disclaimer: Past case results, settlements, and verdicts mentioned on this website do not guarantee or predict a similar outcome in any future case. Every case is unique and depends on its own facts and legal issues.