The United States has a federal system of government, in which state governments have the authority to pass laws with regard to some issues, and the federal government in Washington handles other issues. Criminal law is one of many areas where state and federal governments might overlap, but driving while intoxicated (DWI) is almost always handled at the state level. A DWI may be subject to prosecution under federal law in some situations, and various federal agencies have established penalties for certain people with DWI convictions. Congress has also found ways to influence state laws relating to DWI.
Overview of New Jersey DWI Law
In New Jersey, the state must prove that a driver was either impaired as a result of alcohol or a controlled substance, or had a blood alcohol concentration (BAC) of 0.08 percent or more. Penalties for DWI increase based on the number of prior convictions or the driver’s BAC. A driver who is under 21, the state’s legal drinking age, could be charged with underage DWI if they have a BAC of 0.01 percent or more. New Jersey also makes it an offense to refuse to submit a breath sample for BAC testing when a police officer has probable cause to suspect DWI, which can result in license suspension.