The mission of Arnold Ventures (AV) is to maximize opportunity and minimize injustice. On the Pretrial Justice team, we seek to operationalize this mission across our three portfolios, bail reform, prosecution, and public defense. A priority within our research agenda and bail reform portfolio is to learn more about how the policies and practices of pretrial services can make this mission a reality. We are very committed to building a field of evidence-based practices that promotes successful outcomes, equity, and fairness, for those in the criminal justice system. To do this, we partner with practitioners, policy makers, researchers, and community members around the country. Our grant making within our Pretrial Justice team focuses on research, policy, and technical assistance. We recognize that there isn’t a one size fits all approach that is applicable in all jurisdictions, that meeting people where they are at is essential, and we are committed to doing this in growing our Pretrial Justice portfolio. The goals of this plenary/workshop are to provide a comprehensive overview of the work our Pretrial Justice team funds, describe what we have learned along the way from our grantees and partners, and to highlight our focus areas for building an evidence-base for pretrial services, and certainly to welcome questions and foster dialogue. RTI’s Presentation: RTI International is the National Research Partner for Arnold Ventures’ Advancing Pretrial Policy and Research (APPR) that seeks to achieve fair, just, effective pretrial practices. The purpose of this presentation is to showcase how data can be used to inform policy and practice through RTI’s studies with several jurisdictions. In this presentation, RTI will demonstrate four key findings we have learned from our work studying pretrial systems. First, we demonstrate that the PSA is a valid assessment to assist with pretrial decisions. Second, we show a lack of evidence of predictive bias when testing the PSA. Third, we report that between 25% and 33% of those detained in jails are lower risk individuals. Fourth, we highlight decreases in jail populations post-COVID. Presentation Aims • Highlight the use of data to inform policy and practice • Report findings about PSA validation and bias • Demonstrate data population trends including detention of lower-risk individuals and COVID related reductions CJA’s Presentation: This presentation showcases findings from a unique multiyear research project on the collateral consequences of pretrial detention undertaken by researchers and outreach workers at the New York City Criminal Justice Agency and funded by Arnold Ventures. Over 1,500 individuals who had been arrested in NYC were interviewed about whether their employment situation, residential stability, and family relationships had changed since their arrest or pretrial detention. Statistical analysis reveals that pretrial detention is predictive of job issues, loss of employment, and becoming homeless. Nearly a quarter of participants indicated that they had missed a significant family event due to their arrest or pretrial detention. This presentation aims to review these important findings as well as discuss the practical implications of these findings for the wider pretrial field.