Crashes involving alcohol and drugs have twice the number of injuries and deaths as crashes without alcohol and drug involvement. They usually involve higher speeds, and often both the driver and any passengers are not wearing seatbelts.

As the only statewide traffic enforcement agency, the Colorado State Patrol investigates approximately 30 percent of traffic crashes in Colorado, including about 70 percent of all traffic crashes involving fatalities. The statistics on this site address only Colorado State Patrol enforcement activity. Statistics for the entire state are available from the Colorado Department of Revenue