DWI Attorney in New Jersey

Partner-Direct DWI Defense Across New Jersey: 3,000+ Cases Handled

A DWI conviction in New Jersey permanently marks your driving record. There’s no expungement available, no work license when your driving privilege is suspended, and no second chance at a first offense. The consequences reach well beyond the courtroom: fines, potential jail time, MVC surcharges that run for years, and lasting effects on employment and insurance rates. Under N.J.S.A. 39:4-50, a single conviction can reshape your life.

At Roberts & Teeter, LLC, DWI defense is among the firm’s top priorities. Michael Brett Roberts and Matthew Teeter personally handle every case: no associates, no paralegals. Across more than 3,000 cases over the past decade, our New Jersey DWI attorneys have built the courtroom familiarity and procedural depth that partner-level representation demands. If you’ve been charged, retaining counsel quickly preserves your best opportunity to challenge the evidence before it hardens into a conviction.

If you’ve been charged with DWI, call (732) 607-5553 or reach out online to our New Jersey DWI lawyers for a free consultation.

Understanding New Jersey DWI Law Under N.J.S.A. 39:4-50

In New Jersey, a DWI charge can be brought against anyone who operates a motor vehicle while under the influence of alcohol, narcotics, hallucinogenic drugs, or other habit-producing substances. The charge is brought under two separate but often overlapping legal theories, both codified under N.J.S.A. 39:4-50. The State needs to prove only one for a conviction.

The Per Se Violation

This theory focuses solely on the defendant’s blood alcohol concentration (BAC) as measured by the Alcotest device at the time of the offense.

• A driver is guilty per se if the breath test shows a BAC of 0.08% or higher within a reasonable time of operating the vehicle.
• Commercial drivers are held to a lower legal limit.
• The State doesn’t need to prove visible impairment; the BAC reading alone constitutes the evidence of guilt.

The Impairment Theory

This theory focuses on the defendant’s mental and physical capacity to operate a vehicle safely, regardless of the BAC reading.

• The State proves impairment through circumstantial evidence: officer testimony about erratic driving, performance on field sobriety tests (FSTs), slurred speech, bloodshot eyes, and poor coordination.
• A driver can be convicted under this theory even with a BAC below 0.08%, such as when impairment results from prescription drug use.

New Jersey treats DWI as a motor vehicle violation rather than a criminal offense. The State doesn’t need to prove intent, and there is no right to a jury trial. The case is decided entirely by a municipal court judge. That judge-only structure makes the preparation and credibility of your defense attorney directly consequential.

Key Facts About New Jersey DWI Law

New Jersey’s DWI statutes carry features that surprise many defendants. Understanding these rules before your first court appearance matters.

• New Jersey municipal courts may now accept plea agreements in DWI cases when the prosecutor recommends the agreement and a valid factual basis exists: a change from the prior no-plea-bargaining rule. Plea agreements aren’t guaranteed and depend on the prosecutor’s evaluation of the evidence.
• A DWI charge can be dismissed if the prosecutor determines there is insufficient evidence to prove the case.
• A DWI conviction is classified as a motor vehicle violation, not a crime, which is why it can’t be expunged from your record.
• In some cases, the State may prove its case on a police officer’s observations alone, without a BAC reading.
• Driving in New Jersey is a privilege, not a right.
• Drivers under the age of 21 with a BAC of 0.01% or higher are charged under N.J.S.A. 39:4-50.14, a lower threshold than the standard adult limit.
• The 10-year step-down rule: if more than 10 years pass between DWI convictions, courts may treat the later charge as a lower offense tier for sentencing purposes, though the prior conviction remains on the driving abstract permanently.

Penalties for a DWI Conviction in New Jersey

Penalties increase significantly with each prior conviction. The following reflects current sentencing under New Jersey law.

• First Offense DWI – Fines of $250–$400 for a BAC of 0.08% to under 0.10%, or $300–$500 for a BAC of 0.10% or higher; up to 30 days in jail; 12–48 hours at the Intoxicated Driver Resource Center (IDRC); license suspension until an ignition interlock device is installed at your expense; and a $1,000 annual MVC surcharge for three years.
• Second Offense DWI – Up to 90 days in jail, 1–2-year license suspension, ignition interlock for 2–4 years after restoration, 48 hours at the IDRC, fines of $500–$1,000, and a $1,000 annual MVC surcharge for three years.
• Third or Subsequent Offense DWI – 180 days in jail, 8-year license suspension, ignition interlock during and after the suspension period, a $1,000 fine, and a $1,500 annual MVC surcharge for three years.

New Jersey has no work license or restricted driving program. A suspension means no driving under any circumstances. A conviction also creates a permanent mark on your driving abstract that employers, insurers, and professional licensing boards can access.

View New Jersey’s DUI/DWI Penalty Guide

Navigating Traffic Stops & DWI Checkpoints in New Jersey

DWI checkpoints in New Jersey must be publicly announced in advance and conducted according to a predetermined, non-discretionary protocol. A checkpoint that deviates from those requirements may present grounds for a defense challenge. For standard traffic stops, an officer must have reasonable articulable suspicion of a traffic violation or criminal activity before initiating the stop. Stops based on anonymous or unverified tips may be challenged on constitutional grounds.

When stopped, drivers must provide driving credentials but aren’t obligated to answer additional investigative questions without counsel. Remaining calm, limiting voluntary statements, and documenting the details of the stop afterward (the stated reason for the stop, officer conduct, and any testing administered) can all be valuable for the defense.

Common Issues with Field Sobriety & Chemical Tests

Law enforcement officers rely on FSTs and chemical tests to establish impairment, but neither category of evidence is infallible.

Field sobriety test reliability:
FSTs can be undermined by poor weather or road conditions, medical conditions that mimic intoxication (such as inner ear disorders or knee injuries), and officer failure to follow National Highway Traffic Safety Administration (NHTSA) administration protocols. A test that wasn’t properly administered produces unreliable results that can be challenged.

Alcotest and blood test challenges:
New Jersey uses the Alcotest 7110 MKIII-C as its primary breath-testing device, and some newer cases may involve the Alcotest 9510, which is being rolled out across NJ police departments. Under State v. Chun, 194 N.J. 54 (2008), strict foundational requirements govern Alcotest 7110 admissibility: calibration records must be current, the operator must be certified, the 20-minute observation period must be uninterrupted, and the test sequence must be followed exactly. A BAC reading above 0.08% doesn’t automatically establish guilt if any of those requirements weren’t met. Blood test results carry their own set of challenges, including chain of custody, storage conditions, and laboratory testing protocol.

Refusing a Breath Test in New Jersey: Implied Consent & the Consequences

New Jersey’s implied consent law holds that any driver on a public road is deemed to have consented to breath testing when an officer has probable cause to believe they are intoxicated. Refusal is charged as a separate violation under N.J.S.A. 39:4-50.4a, independent of the underlying DWI charge. A driver can face penalties for both from the same stop.

New Jersey courts have interpreted refusal broadly. Silence, short breath samples, outright refusal, stalling, and conditional consent have all been held to constitute refusal. No sample may be taken by force; if a driver refuses, police must inform them of the consequences before charging refusal.

First-offense refusal penalties include:

• Fine of $300–$500
• License suspension until an ignition interlock device is installed
• IDRC referral
• $1,000 annual MVC surcharge for three years
• Ignition interlock for 6–12 months after license restoration

How We Build a DWI Defense in New Jersey

Defending a DWI charge under N.J.S.A. 39:4-50 means attacking the State’s case where it is most vulnerable. We approach each case through three primary lines of challenge.

• Challenging the Motor Vehicle Stop: Police must have reasonable suspicion of a traffic violation or criminal activity to legally initiate a stop. If the stop was based on a weak observation, an unverifiable tip, or an improperly conducted checkpoint, we file a Motion to Suppress. A successful suppression motion may lead to dismissal because the evidence flows from the unlawful stop.
• Attacking the Field Sobriety Tests: FSTs are subjective and condition-dependent. We examine whether the tests were administered according to NHTSA protocol, whether environmental or medical factors affected the results, and whether the officer’s observations were consistent with impairment or explained by other causes.
• Disputing Alcotest Results Under the Chun Protocols: We request and scrutinize calibration reports, operator certification records, the uninterrupted 20-minute observation period, and the complete test sequence. Each requirement the State fails to satisfy is a basis for challenging the breath test reading’s admissibility.

Drug DWI cases present a distinct set of challenges. When a Drug Recognition Expert (DRE) evaluation or toxicology result drives the State’s case rather than a BAC reading, the defense focuses on the DRE’s methodology, the toxicology chain of custody, and whether the identified substance actually caused the level of impairment alleged. We work with private investigators and subject-matter specialists to strengthen each line of challenge.

Why Clients Choose Roberts & Teeter, LLC for DWI Defense

Michael Brett Roberts and Matthew Teeter personally handle every DWI case at our firm. Clients aren’t passed to junior associates or paralegals at any stage. Both partners focus their practice on criminal law, which means the knowledge they bring to a DWI stop, an Alcotest calibration dispute, or a Chun protocol challenge comes from handling these cases repeatedly, not from oversight. With more than 3,000 cases over the past decade, that experience is specific and current.

In a DWI case tried before a single municipal court judge with no jury, there’s no room for a second opinion in the courtroom. The attorney handling your case is the only one making the argument. That’s exactly why the boutique, partner-direct model matters: consistent strategy, direct communication, and accountability at every stage of the case.

We stay current on changes to New Jersey DWI law and DWI defense strategies, including the ongoing transition to the Alcotest 9510 in courts across the state. We conduct thorough case evaluations, communicate in detail so clients understand where their case stands at every stage, and work with a network of private investigators and specialists when the facts warrant it. Free consultations are available to anyone charged with DWI in New Jersey.

Contact a New Jersey DWI Attorney at Roberts & Teeter, LLC

We can review the facts of your case, investigate the circumstances of the arrest, and evaluate the evidence to develop a defense strategy for your situation. The penalties for a DWI conviction are severe and permanent. Acting quickly gives the defense the best opportunity to challenge the evidence while options remain open.

Call Roberts & Teeter, LLC at (732) 607-5553 or contact us online to discuss your case with one of our NJ DWI attorneys.

Frequently Asked Questions About DWI in New Jersey

What Happens If I Get a DWI in New Jersey?

A DWI charge triggers both court proceedings and administrative consequences. You’ll face a hearing before a municipal court judge where the arresting evidence is reviewed. If convicted, penalties include license suspension, fines, potential jail time, IDRC referral, MVC surcharges, and sharply increased insurance premiums. Because the conviction can’t be expunged, engaging a DWI attorney early gives the defense the best opportunity to challenge the evidence before the case proceeds.

How Can I Defend Against DWI Charges?

Common defenses include challenging the legality of the traffic stop, disputing the accuracy of sobriety and breath tests, and identifying procedural errors by law enforcement. Our attorneys can tailor a defense to the specifics of your case so every available argument is presented to the court.

Is It Possible to Have a DWI Expunged from My Record?

No. In New Jersey, a DWI conviction is classified as a motor vehicle violation rather than a criminal offense, which means it can’t be expunged. The conviction remains on your driving abstract permanently and is accessible to employers, insurers, and licensing boards. This is one of the most consequential features of New Jersey DWI law and one of the strongest reasons to build a thorough defense from the outset.

What Is the Role of Field Sobriety Tests?

Field sobriety tests are standardized assessments used by law enforcement to gauge a driver’s level of impairment. They aren’t foolproof and can be influenced by medical conditions, environmental factors, and improper administration. Our attorneys can scrutinize the test conditions and results for inconsistencies or legal shortcomings that may support your defense.

Should I Get an Ignition Interlock Device After a DWI?

For most DWI convictions in New Jersey, installation of an ignition interlock device is mandatory, not optional. The device requires a breath sample before the vehicle will start. For a first offense, the interlock must be installed before driving privileges are restored. Compliance with the interlock requirement allows license restoration to proceed. Your attorney can advise on the specific duration and conditions that apply to your conviction.

What Should I Do Immediately Following a DWI Arrest?

Remain calm and cooperate with law enforcement as required. Don’t volunteer information that could be used against you. Contact a DWI attorney as soon as possible and document everything you can recall about the stop: the reason the officer gave, any field sobriety tests administered, the location and time, and the officer’s conduct throughout. That documentation can be valuable when building a defense.

What Are My Rights at DWI Checkpoints?

At DWI checkpoints in New Jersey, you have the right to remain silent beyond necessary communications with police and are protected against unreasonable searches and seizures. You must provide driving credentials but aren’t required to answer investigative questions without counsel present. Checkpoints must follow a publicly announced, non-discretionary protocol, and any deviation from established procedures may be grounds for a defense challenge.

Can a DWI Conviction Affect My Job or Professional License?

Yes. Although a DWI is a motor vehicle offense rather than a crime, it appears permanently on your driving abstract, which employers and licensing boards can access. Positions requiring a clean driving record, commercial driving roles, and licensed professions in fields such as nursing, law, or education may be directly affected. Commercial driver’s license holders face separate federal disqualification rules on top of New Jersey’s state penalties. The professional consequences are one more reason to take the defense seriously from the first hearing.

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