prisoners; correctional facilities; sentencing

SB 1285 modifies Arizona's sentencing laws for prisoners. It requires new prison sentences to run consecutively (one after another) if a person commits a felony offense while under correctional supervision (e.g., in state, private, or federal custody). For murder convictions, it clarifies that life sentences with "natural life" (no parole eligibility) apply in specific cases, and sets minimum service periods (25 or 35 years) before release for life sentences involving minors or vulnerable victims. The bill also adjusts sentencing procedures by requiring prosecutors to prove aggravating circumstances beyond a reasonable doubt and defendants to prove mitigating circumstances by a preponderance of evidence.