DWI Defense in New Jersey: Understanding Your Options

DWI in New Jersey: What You Need to Know

Driving While Intoxicated (DWI) under N.J.S.A. 39:4-50 is one of the most serious traffic offenses in New Jersey. Unlike most states, NJ treats DWI as a traffic offense rather than a criminal charge — but the consequences are severe and permanent (DWI cannot be expunged).

DWI Penalties in New Jersey

First Offense (BAC 0.08% – 0.10%):

• License suspension: 3 months
• Fine: $250–$400
• IDRC (Intoxicated Driver Resource Center): 12–48 hours
• Surcharges: $1,000/year for 3 years
• IID required for 3 months after restoration

First Offense (BAC 0.10%+):

• License suspension: 7 months – 1 year
• Fine: $300–$500
• IDRC: 12–48 hours
• Surcharges: $1,000/year for 3 years
• IID required for 9–15 months

Second Offense:

• License suspension: 2 years
• Jail: 48 hours – 90 days (or 30 days community service)
• Fine: $500–$1,000
• IID required for 2–4 years

Third Offense:

• License suspension: 10 years
• Jail: 180 days
• Fine: $1,000
• IID required for 10 years

Common DWI Defenses

1. Challenging the Traffic Stop

Police must have reasonable suspicion to stop your vehicle. If the stop was unlawful, all evidence obtained (including the breathalyzer result) may be suppressed.

2. Challenging the Breathalyzer (Alcotest)

New Jersey uses the Alcotest 7110 breathalyzer. Defenses include:

• Improper calibration or maintenance
• Failure to observe the 20-minute deprivation period
• Operator error
• Medical conditions (GERD, acid reflux) that can affect readings
• Mouth alcohol contamination

3. Challenging Field Sobriety Tests

Field sobriety tests (walk-and-turn, one-leg stand, HGN) are subjective and can be affected by medical conditions, fatigue, nervousness, and environmental factors.

4. Rising Blood Alcohol Defense

Alcohol continues to be absorbed after you stop drinking. Your BAC at the time of the test may have been higher than at the time of driving — potentially bringing your driving BAC below the legal limit.

5. Challenging the Observation Period

Officers must observe you for 20 minutes before administering the Alcotest to ensure you have not burped, belched, or regurgitated. Failure to properly observe can invalidate the test.

Why Fighting a DWI Matters

Because DWI cannot be expunged in NJ, a conviction follows you permanently. It affects:

• Auto insurance rates (dramatically increased for years)
• Professional licenses (law, medicine, nursing, CDL, etc.)
• Immigration status
• Employment background checks
• Future DWI penalties (second and third offenses carry much harsher penalties)

An experienced DWI attorney can evaluate every aspect of your case and identify defenses that may not be obvious.

Disclaimer: This article is for general informational purposes only and does not constitute legal advice. Please consult a licensed New Jersey attorney for advice specific to your situation.