On multiple occasions, prosecutors in this state have charged people with driving while intoxicated (DWI) for operating a bicycle while allegedly under the influence. This raises an interesting question about the scope of DWI law. Courts have reached different conclusions about whether operating a non-motorized bicycle—meaning one that is solely powered by a person’s own effort—constitutes DWI under New Jersey law. The Appellate Division does not appear to have ruled on the question directly, but trial court decisions point to the conclusion that the DWI statute only applies to motorized vehicles.
The New Jersey statute defining DWI specifically states that an offense occurs when a person is operating a “motor vehicle.” State law defines a “motor vehicle” to include most vehicles “propelled otherwise than by muscular power.” This definition excludes trains and other rail-based vehicles, as well as “motorized bicycles.” The law defines a “motorized bicycle” as a pedal bicycle that can be assisted by a motor that allows it to travel at a maximum of 25 miles per hour—commonly known as a moped. A separate statute addresses operating a motorized bicycle while under the influence of alcohol or drugs, and it imposes the same penalties as in a DWI case involving a motor vehicle.
Several New Jersey trial courts have addressed the question of whether the DWI statute applies to bicycles. Since none of these cases resulted in an Appellate Division ruling, they are not binding on other courts. They may still be persuasive, though. In 1982, the Superior Court in Somerset County held in State v. Tehan that the DWI statute applies to bicycles, but only to a partial extent. Bicycle riders are “subject to all of the duties applicable to the driver of a vehicle,” the court noted. It also found that, since riding a bicycle does not require a license, the driver’s license suspension provisions of the DWI statute do not apply to bicycles. It affirmed the municipal court’s guilty verdict and the fine, but it reversed the license suspension.