New Jersey’s driving while intoxicated (DWI) law places a great deal of emphasis on a defendant’s blood alcohol concentration (BAC). Police can determine a DWI suspect’s BAC by testing a sample of breath, blood, or urine. Breath testing is the most common method, and New Jersey’s implied consent law makes it a traffic offense to refuse a police officer’s demand for a breath sample. Not everyone is physically capable of providing a sufficient sample, however. The New Jersey Superior Court, Appellate Division recently ruled, in State v. Monaco, that a defendant has the burden of proving that a physical condition prevented them from completing a breath test.
Refusing to submit to breath testing is a traffic offense under New Jersey law, with penalties comparable to a first-time DWI. These can include fines, license suspension, and the use of an ignition interlock device. New Jersey police generally use a breath-testing device known as the Alcotest. Court decisions have established procedures that police must follow prior to and during breath testing, including a 20-minute waiting period during which the DWI suspect cannot touch or place anything in their mouth.
The Alcotest device requires at least 1.5 liters of air, which typically requires a person to exhale forcefully for at least four and a half seconds. Not everyone is capable of providing this much air through sustained exhalation. This was a key issue in the defendant’s appeal in the Monaco case.