Why checkpoints are allowed, and where they are not
The U.S. Supreme Court has held that properly conducted sobriety checkpoints do not violate the federal Constitution, even though drivers are stopped without individual suspicion. Some states still prohibit or limit them under their own constitutions or laws. New York allows them, but courts expect a checkpoint to follow a plan that limits officers' discretion, such as a set pattern for which vehicles are stopped. A checkpoint that departs from its plan, or that never had a meaningful one, can be challenged. Whether a particular checkpoint met those expectations is decided case by case, on what the records and testimony show.
From the first window to a secondary area
At a checkpoint, the first contact is usually brief: a few questions and a look at the driver. If an officer notices something suggesting impairment, the driver may be directed to a secondary area for more questions, roadside exercises, or a screening device. The reasons for sending a driver to that area, and what the officer recorded about them, are often examined closely. Turning off before a checkpoint by a lawful route is not a crime in itself, but a traffic violation committed while doing so can justify a stop. From that point on, the case usually proceeds like any other impaired-driving arrest.
Records that show how the checkpoint ran
Checkpoints usually generate paperwork, often including an operational plan, staffing assignments, and the approved location and hours. Records of how many vehicles passed through and how drivers were selected may also exist. We request those documents, along with any video, to compare how the checkpoint was supposed to run with how it actually ran. Tell us where and when you were stopped, which direction you were traveling, and what you remember about signs, lights, and the officers present. Those details help locate the right records quickly, before routine retention periods run out.
