Original sentence: Drugs are also related to crime through the effects they have on the user's behavior and by generating violence and other illegal activity in connection with drug trafficking.Most directly, it is a crime to use, possess, manufacture, or distribute drugs classified as having a potential for abuse (such as cocaine, heroin, morphine and amphetamines)
Edited sentence: Both legal and illegal drugs are said to be related to crime through the effects they have on the user's behavior.Most directly, it is a crime to use, possess, manufacture, or distribute drugs classified as having a potential for abuse (such as cocaine, marijuana, heroin, morphine and amphetamines).Violence and other illegal activity in connection with drug trafficking are related to the drug prohibition in that addicts often resort to illegal behaviors to support their addiction