Marijuana is drug most often linked to crime, study finds

Eighty percent of the adult males arrested for crimes in Sacramento, Calif., last year tested positive for at least one illegal drug. Marijuana was the most commonly detected drug, found in 54 percent of those arrested.

The study found similar results in four other cities: New York, Denver, Atlanta and Chicago. Among the cities, it included examinations of 1,736 urine samples and 1,938 interviews with men who were arrested.