The purpose of this report is to examine methamphetamine use among adult arrestees and juvenile detainees in Maricopa County, Arizona. We relied on data from the Arizona Arrestee Reporting Information Network (AARIN) to address the following five questions:
1. What percent of adult arrestees are methamphetamine users and what are their social characteristics?
2. What is the relationship between methamphetamine use and arresting offense?
3. What is the relationship between methamphetamine use by parents and the presence of children in the household?
4. What percent of methamphetamine users are receiving treatment for their drug use?
5. What percent of juvenile detainees are methamphetamine users and what are their social and legal characteristics?

For the 2008 AARIN study, 2,105 Maricopa County (AZ) arrestees volunteered to complete the survey instrument and to provide a valid urine specimen for testing. In addition, the arrestees responded to a series of questions related to methamphetamine use, including patterns of use, treatment, drug transactions, sales and manufacturing, and awareness of the Arizona Meth Project. Among those participants, 435 (20.7%) admitted to having used methamphetamine in the 30 days prior to arrest.