The connection between criminal activity and the use of drugs and alcohol has long been an issue in American society. Even before federal laws were passed in 1914 to control narcotics and other drugs, observers claimed that drug use and criminal activity were strongly linked. Drugs and alcohol are thought to encourage criminal behavior in several ways. Their use can reduce inhibitions, stimulate aggression, and interfere with critical thinking and motor skills (such as driving or operating machinery). Each of these factors may also reduce a person's ability to earn a legal income, which may lead the drug user to commit crimes in order to obtain money. For those using addictive drugs, the need to get money to support a drug habit may take priority over any other consideration.

Table 8.1
How are drugs and crime related?