NJ DUI Case Law — State v. Thompson (2020) and the Meaning of “Operation”

New Jersey DUI law does not require proof that a vehicle was actually driven. Instead, N.J.S.A. 39:4-50(a) prohibits the operation of a motor vehicle while under the influence. One of the leading published decisions addressing this distinction is State v. Thompson, decided by the New Jersey Appellate Division in 2020.

This page summarizes the holding of State v. Thompson and explains how New Jersey courts analyze “operation” when a vehicle is parked or stationary.

Overview of State v. Thompson

In State v. Thompson, 462 N.J. Super. 370 (App. Div. 2020), police officers responded to a report of a man sleeping inside a vehicle parked in a convenience store parking lot. The defendant was seated behind the wheel, appeared intoxicated, and the vehicle’s engine was running. The vehicle was not observed in motion.

The defendant argued that the State failed to prove he had operated the vehicle because there was no evidence of driving. Both the municipal court and the Law Division rejected that argument. The Appellate Division affirmed.

The court held that actual movement of the vehicle is not required to establish operation under New Jersey’s DUI statute.

Does New Jersey DUI Law Require Proof of Driving?

No. Although the offense is commonly referred to as “driving while intoxicated,” the statute itself does not require proof of driving.

N.J.S.A. 39:4-50(a) prohibits operation, not driving. New Jersey courts have consistently interpreted operation broadly to include circumstances where an intoxicated person has the ability and opportunity to place the vehicle in motion, even if the vehicle never actually moves.

In Thompson, the Appellate Division emphasized that the focus is not on whether the car was driven, but on whether the circumstances demonstrate the possibility of motion.

Can a Parked Vehicle Still Be “Operated” Under NJ DUI Law?

Yes. The court reaffirmed that a parked vehicle may still be considered operated depending on the facts.

In Thompson, the defendant was:

• Seated behind the steering wheel
• Intoxicated
• Inside a vehicle with the engine running

Although no witness observed the vehicle moving, the court concluded that these facts were sufficient to establish operation because they demonstrated readiness and capacity for motion.

The Appellate Division explained that New Jersey DUI law is intended to be applied flexibly and pragmatically to protect public safety.

Is Sleeping in a Car Considered DUI in New Jersey?

Sleeping in a vehicle is not automatically a DUI offense. However, State v. Thompson illustrates that sleeping behind the wheel of a vehicle with the engine running may constitute operation under certain circumstances.

Courts evaluate operation based on the totality of the circumstances, which may include:

• Whether the engine was running
• The defendant’s position in the vehicle
• Evidence of recent driving
• Statements made to law enforcement
• Time, location, and surrounding conditions

Because operation is fact-specific, cases involving parked or stationary vehicles often require careful legal analysis.

Key Takeaway from State v. Thompson

New Jersey DUI law focuses on “operation,” not driving.
A person may be convicted even when a vehicle is not observed in motion if the circumstances show the possibility of movement, such as being intoxicated behind the wheel with the engine running.

At the same time, operation remains an element the State must prove beyond a reasonable doubt in every case.

How This Case Fits Within NJ DUI Operation Law

The Thompson decision aligns with longstanding New Jersey precedent holding that DUI statutes should be construed broadly to advance public safety goals. It is one of several published opinions clarifying that operation may be established without direct evidence of driving.

For a broader discussion of how operation is analyzed in New Jersey DUI cases, see our overview of DUI operation issues under NJ law.
(Internal link to your existing DUI Operation page — one link only.)

Citation

State v. Thompson, 462 N.J. Super. 370 (App. Div. 2020), certif. denied, 2021 N.J. LEXIS 387 (N.J. 2021).

Anthony J. Vecchio, Esq.
New Jersey DUI & Criminal Defense Attorney
Former Municipal Prosecutor
Law Office of Anthony J. Vecchio, LLC