In-Car Breathalyzers Prevent Drunk-Driving Deaths.
After examining trends in alcohol-related fatal car accidents from 1982 to 2013, researchers estimate ignition interlock laws have prevented about 1,250 deaths. Study leader Dr. Emma McGinty notes, “Our study suggests that [ignition interlocks] are effective, and it’s encouraging to see more and more states moving towards this evidence-based policy change.”
American Journal of Preventive Medicine, January 2017