Marijuana use is concentrated among younger arrestees, particularly young males. Marijuana is the primary drug used by juvenile arrestees. On average, more than half of juvenile males tested positive for marijuana, ranging from approximately 46 percent in Indianapolis to around 63 percent in Phoenix. By contrast, 3.5 percent in Portland and 14.6 percent in Los Angeles tested positive for cocaine. San Diego had the highest percentage of juveniles who tested positive for methamphetamine, about 12 percent.
Opiate use remains very low among juvenile arrestees.
ADAM also facilitates locally initiated research on topics related to drugs and crime identified by communities. The ADAM Program consists of collecting and analyzing interviews and urinalysis of adult and juvenile arrestees and detainees in police lock-ups. Once fully developed, ADAM will serve as a source of information about drug use in our nation's cities, suburbs, rural areas and Native American sites. In 1998, the ADAM program conducted interviews and drug tests with more than 30,000 recently booked arrestees in 35 major metropolitan sites. Attached is a list of the 35 sites.