DWI Detection Guide
The 20 driving patterns officers are trained to look for, along with the statistical probability of each as an indicator of intoxication, from the U.S. Department of Transportation.
Sobriety Checkpoint Guide
Law enforcement standards for DUI sobriety roadblocks from the National Highway Traffic Safety Administration.
Standardized Field Sobriety Tests
Information and studies on NHTSA's standardized field sobriety tests used by officers.
Drunk Driving Guide Sections
Detection and Investigation