Mia Bird is a policy analyst and applied researcher focused on criminal justice reform and the intersections of criminal justice, health, and social safety net policies. She is an assistant research professor at the Goldman School of Public Policy. Before joining the Berkeley faculty, she spent seven years at the Public Policy Institute of California as a research fellow. At PPIC she co-founded and directed the PPIC-BSCC Multi-County Study, an effort to create California’s first criminal justice data infrastructure linking individual-level data from the state with data from a representative group of counties. Bird joined UC Berkeley in 2019 to continue her efforts to build sustainable criminal justice data systems and to leverage these data to inform policy decisions. She currently works with a team at the California Policy Lab to provide research support to the Committee on the Revision of the Penal Code. She also leads projects focused on evaluating the effects of California’s AB 1950 (probation term limits), AB 372 (domestic violence programming pilot), and the statewide pretrial reforms on criminal justice outcomes. Her work has been funded by Arnold Ventures, the Blue Shield Healthcare Foundation, the California Endowment, the California Wellness Foundation, the National Institute of Justice, and the Russell Sage Foundation. Bird has been published in the ANNALS of the American Academy of Political and Social Science, Criminology and Public Policy, Criminal Justice Policy Review, and the American Journal of Criminal Justice. She holds a PhD in public policy, an MA in demography, and an MPP from the University of California, Berkeley.