Section 38-841 - Purpose; vested benefitsA. Before the establishment of the public safety personnel retirement system, municipal firemen and policemen, employees of the Arizona highway patrol and other public safety personnel in the state of Arizona were covered under various local, municipal and state retirement programs. These heterogeneous programs provided for wide and significant differentials in employee contribution rates, benefit eligibility provisions, types of benefit protection and benefit formulas.B. In order to provide a uniform, consistent and equitable statewide program for public safety personnel who are regularly assigned hazardous duty in the employ of the state of Arizona or a political subdivision thereof, this retirement system was created effective as of July 1, 1968, as an amendment to and continuation of three prior systems. Groups of employees covered under the three prior systems as of June 30, 1968, and the assets and liabilities accumulated thereunder for such employees, are transferred with prior service credits to this retirement system as of the effective date, and both they and their employers shall be required to make stipulated contributions to support the system's benefit structure on a sound actuarial basis. Future employees in such groups shall commence participation in, and contributions to, the system immediately on commencement of covered employment.C. The provisions of this system shall not be construed to authorize the granting of any retirement benefits to persons who are retired as of the effective date of this article, except as described in sections 38-849 and 38-853.D. Additional eligible groups of public safety personnel will participate in the system pursuant to election by their employer for such coverage under an appropriate joinder agreement.E. The public safety personnel retirement system is a jural entity that may sue and be sued.