Driving Under the Influence

Driving under the influence of alcohol or drugs, including methamphetamine, can impair the ability to drive safely (Colorado, 2018). 

DUI Collisions

From 2001 to 2017, there were 482 methamphetamine-involved fatal collisions in LAC (Figure 1). 

Note: Data for 2017 were preliminary and are subject to change.

DUI Fatalities and Injuries

From 2001 to 2017, there were 538 fatalities and 376 injuries from methamphetamine-involved fatal collisions (Figures 2-3).

DUI Drivers

Methamphetamine-positive drivers were more likely to be male, aged 25-44, and white

The drivers who died in fatal collisions and had tested positive for methamphetamine (N=435) were predominantly male (N=369, 85%), and over half of them were aged 25-44 years (N=245, 56%) (Figures 4-5)

Among drivers who died in fatal collisions (for which race/ethnicity information was available from death certificates) and who had tested positive for methamphetamine, whites (47%) and Latinxs (41%) accounted for the largest race/ethnic group, followed by blacks (7%), Asian/Pacific Islanders (API) (3%) and other (American Indian and multiple race) (Figure 9). 

Drug Combinations

Meth-positive drivers most often took meth in combination with other drugs

- Among the 483 drivers who tested positive for methamphetamine, three-quarters (75%) also tested positive for other drugs, and one-third (33%) also tested for alcohol (BAC > 0.08).  Only 15% were positive for methamphetamine alone (Figure 7).

AOD: Alcohol and other drugs.


Colorado Department of Public Safety. Division of Criminal Justice. Office of Research and Statistics. (2018). Driving Under the Influence of Drugs and Alcohol. A Report Pursuant to House Bill 17-1315.

National Highway Traffic Safety Administration (NHTSA) Fatality Analysis Reporting System (FARS), 2001-2017.