Frequently Asked Questions
What do police officers look for when searching for drunk drivers on the highways?
The following is a list of symptoms in descending order of probability that the person observed is driving while intoxicated. The list is based upon research conducted by the National Highway Traffic Administration:
- Turning with a wide radius
- Straddling center of lane marker
- "Appearing to be drunk"
- Almost striking object or vehicle
- Driving on other than designated highway
- Speed more than 10 mph below limit
- Stopping without cause in traffic lane
- Following too closely
- Tires on center or lane marker
- Braking erratically
- Driving into opposing or crossing traffic
- Signalling inconsistent with driving actions
- Slow response to traffic signals
- Stopping inappropriately (other than in lane)
- Turning abruptly or illegally
- Accelerating or decelerating rapidly
- Headlights off
Speeding, incidentally, is not a symptom of DUI; because of quicker judgment and reflexes, it may indicate sobriety.
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