Final answer:
Marijuana is the second most common drug found in the bodies of collision victims after alcohol. It remains a widely abused substance with legal status varying by jurisdiction but can still impair driving.
Step-by-step explanation:
Marijuana is the second most common drug found in the bodies of collision victims, with alcohol being the first. Despite the legalization and decriminalization progress for marijuana, it remains widely abused and often appears in the context of accidents and crimes. Unlike alcohol, which is a depressant, marijuana is classified differently, yet both substances can impair judgment and motor skills, leading to increased risks while operating vehicles.