Marin County, California, has appointed Laura Rosas as the new Assistant County Executive for the Justice and Welfare Group, a role that completes the county's new four-group executive structure initiated in 2023. Rosas will be responsible for overseeing five key departments: Child Support Services, Probation, the Public Defender, the Sheriff, and the District Attorney. Her appointment follows a reorganization approved by the Board of Supervisors in November 2023, which aimed to enhance the coordination and efficiency of public safety and justice services across the county.

Rosas brings over two decades of extensive public sector experience, most recently serving as the CEO of Valley Health Plan in Santa Clara County. In that role, she led a significant technology overhaul and managed the construction of a new headquarters for the health plan, which serves over 230,000 members. Additionally, she has held leadership positions within the U.S. Department of Health and Human Services, where she was involved in national initiatives related to health information technology and behavioral health systems. County Executive Derek Johnson remarked that Rosas' expertise in managing large systems and driving innovation will be crucial for improving outcomes in Marin County's justice and public safety departments.