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 2020, there were 540 fatal collisions in which at least one driver tested positive for methamphetamine (methamphetamine-involved ) in LAC (Figure 1), accounting for 12.1% of all fatal collisions involving alcohol or drugs (N=4,465). 

Note: Data for 2020 were preliminary and are subject to change.

DUI Fatalities and Injuries

From 2001 to 2020, there were 598 fatalities and 418 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=479) were predominantly male (N=406, 85%), and over half of them were aged 25-44 years (N=271, 57%) (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 (40%) accounted for the largest race/ethnic group, followed by blacks (8%), 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 541 drivers in LAC fatal collisions who tested positive for methamphetamine, over half (52%) also tested positive for other drugs, 24% also tested positive for both alcohol and other drugs, and 10% also tested positive for alcohol (BAC > 0.08). Only 14% 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), 2001-2020.