What is the second moston common drug found in collision victims

Marijuana is the second most common drug found in the bodies of collision victims according to the fact. Marijuana is a type of hallucinogen which makes the user experience the hallucination.The meaning of hallucination is, an experience involving the apparent perception of something not present."he continued to suffer from horrific hallucinations"  Which in other words it means he sees things. 

Maybe if you put away all your electronics and lock them with a key and give the key to some one you trust like your parents for about a month to stop the process