This research report documents the training, policy development, and reconciliation activities of the six cities that took part in the National Initiative for Building Community Trust and Justice, an effort to promote more equitable, just, and respectful policing practices and improve relationships and trust between law enforcement and community members. We found that the training component of the Initiative, which exposed officers to concepts of procedural justice and implicit bias, was implemented as intended and was well received by officers. In addition, the reconciliation framework used to improve relationships between police and communities was powerful and impactful, leading police departments to make changes to their policies to build trust and institutionalize improvements to practices. We also observed that local contexts affected the implementation process, with factors such as police leadership stability and the dynamics underlying relations between police, political leadership, and the community facilitating or impeding progress.