To accelerate trusted access to data for improved management of our criminal justice system, the Governance Lab with the support of the Laura and John Arnold Foundation, is working to articulate principles, policies, practices, and tools for trusted data sharing that safeguard civil liberties while maximizing the opportunity for evidence-based policy making and reform. The goal of the project is to enable greater collaboration between government and the research community to the end of improving effectiveness and legitimacy of our nation’s criminal justice system.