New York is one of 38 states that conduct checkpoints to canvass drivers who may be operating their vehicles under the influence of drugs or alcohol. The other 12 states do not conduct sobriety checkpoints because they are prohibited by law, based on that state's interpretation of the U.S. Constitution. In Alaska, officers do not conduct checkpoints because the legislature simply has not given them authority to do so.
When drivers are found guilty of driving while under the influence in New York, even for a first misdemeanor offense, they must pay for the installation and maintenance of an interlock device. The state's Ignition Interlock Program requires the driver to provide a breathe sample before the engine will start. The device often includes a camera to provide photographic evidence of who is giving the sample.