Which illegal drug is most commonly detected in impaired and fatally injured drivers?

Marijuana is often detected in impaired and fatally injured drivers due to its widespread use and the way it affects driving abilities. Research has shown that THC, the active compound in marijuana, can impair cognitive functions, motor skills, reaction times, and overall decision-making processes, which are crucial for safe driving.

Its effects can persist long after use, making it a significant concern for law enforcement and public safety officials. In recent years, studies have indicated an increase in the presence of marijuana among drivers involved in accidents, especially as legalization has expanded in various regions. This correlation between marijuana use and impaired driving underscores the dangers associated with its consumption before driving.