During 2008, 2,105 adult arrestees participated in the AARIN study. Participants completed the survey instrument and provided a valid urine specimen for testing. In addition to the core AARIN instrument, a supplemental set of question was asked of the arrestees. This Market and Use Addendum consisted of a series of questions related to the arrestees’ acquisition of drugs and specific drug market behaviors.

The information in this report is based on telephone interviews with 700 registered voters. One random sample of 500 registered voters was selected from all registered voters living in Arizona. This sample was proportionately stratified so that voters in each of Arizona’s 15 counties were included in the sample. An additional sample of 100 interviews with registered voters living in Pima County was also interviewed. A third random sample of 100 registered voters living in the more rural counties also was interviewed. The purpose of selecting the two smaller samples was to create sub-samples of Pima County and rural voters that could be compared with the opinions of voters in Maricopa County.