<p>The U.S. Department of State, through its Bureau of International Narcotics and Law Enforcement Affairs (INL), provides foreign assistance and supports capacity building for criminal justice systems and police organizations in approximately 90 countries around the world. It has a mandate to strengthen fragile states, support democratic transitions, and stabilize conflict-affected societies by helping partner countries develop effective and accountable criminal justice sector institutions and systems.</p> <p>At the request of INL, the National Academies of Sciences, Engineering, and Medicine assembled the Committee on Evidence to Advance Reform in the Global Security and Justice Sectors to review the available research evidence on police and policing practices, with emphasis on how police reform can promote the rule of law and protect the public. The 5 consensus studies that are part of this project provide evidence-driven policy and research recommendations for key stakeholders with the goal of informing capacity-building activities. This report is a compilation of those 5 studies.</p>