The first symposium, which was held in Los Angeles on November 18, 2009, discussed the emerging framework for predictive policing and its impact on the future of law enforcement. Participants explored the policy implications, privacy issues, and technical elements of predictive policing. Agencies that had received competitive grants to implement and evaluate predictive policing programs reported on their plans for the next 12 months. The Los Angeles Police Department (LAPD), one of the grantees, gave symposium participants a tour of its new headquarters and Regional Crime Center, which are state-of-the art facilities that provide an ideal setting for applying predictive policing principles. Session summaries accessible from this Web page address the LAPD experiment, what chiefs expect, demonstration projects and evaluation, policy and practice, privacy and legal issues, and technical issues. The symposium agenda and meeting summary are also available. The second symposium was held at Roger Williams University in Bristol, RI, June 2-3, 2010. At this symposium, participants examined what predictive policing would mean for smaller departments with limited budgets and personnel. Accessible summaries of symposium sessions address what chiefs expect, policy and practice, and technical issues.