Call 911 immediately if the driver is actively dangerous or you believe someone is in immediate danger
Pull over safely and do not follow too closely
Note the vehicle’s make, model, color, and license plate number if possible
Record the location, direction of travel, and time
Observe and remember unsafe driving behavior such as swerving, speeding, running lights, or near misses
Keep a safe distance and avoid confronting the driver
If you are a passenger, ask the driver to stop the vehicle safely if possible
Report the driver to local police or highway patrol as soon as it is safe to do so
Provide clear, factual details to dispatch or police
If you are on a highway, use emergency call boxes or roadside assistance if 911 is unavailable
If the driver is in a parking lot or private area, notify security or property management if appropriate
If you are the driver and the suspected drunk driver is behind you, change routes only if it is safe and continue to a public place or police station if needed
Do not attempt to stop the vehicle yourself
If there is a crash, call emergency services immediately and stay at the scene if it is safe to do so