Ariz. Rev. Stat. § 48-4004 – Juvenile detention facilities

A. If a county jail district was established before August 6, 1999 or if approved pursuant to section 48-4023.01, the board of supervisors may adopt a resolution authorizing the district to acquire, construct, operate, maintain and finance juvenile detention facilities.
B. The resolution shall set a date for a hearing on the resolution, no less than twenty-one or more than forty days from the date of the resolution. The notice of the hearing shall be published once each week for at least three consecutive weeks before the hearing in a newspaper of general circulation in the county and shall be posted at least three weeks before the hearing in at least three public places in the county. The board shall meet at the time and place fixed for the hearing. At the hearing, the board shall hear all persons who wish to appear in favor of or against the resolution.
C. If, after the hearing, it appears to the board that the public interest, convenience and necessity will be served by authorizing the district to acquire, construct, operate, maintain and finance juvenile detention facilities, the board shall declare its findings and either call a district-wide special election or place the issue on the ballot of a regular general election held in the district. The board shall specify on the ballot:
1. 1. A summary of the board's findings under this section.
2. 2. A summary of the projected costs of the facility over the first five years of acquisition, construction and operation.
3. 3. The amount of additional tax revenues that will be required to finance the facility.
D. If approved by the qualified electors voting at the election, the district may proceed to acquire, construct, operate, maintain and finance juvenile detention facilities as provided in this chapter.
E. If the board of supervisors determines that there are insufficient revenues to operate and maintain all facilities of the district, the board of supervisors shall ensure that the adult jail facilities have priority for district revenues. The county shall continue to have authority to fund juvenile detention facilities.