The U.S. Department of Justice’s (DOJ) Office of Justice Programs (OJP) provides innovative leadership to federal, state, local, and tribal justice systems by disseminating state-of-the-art, research-based knowledge and practices across the United States and providing grants for the implementation of these crime-fighting strategies. Because most of the responsibility for local crime control and prevention falls to law enforcement officers in states, cities, and tribal communities, the U.S. federal government can be most effective when it engages in partnerships with those agencies and their officers. Therefore, OJP works in partnership with the justice community to identify the most pressing crime-related challenges confronting the justice system and to provide information, training, coordination, and innovative strategies and approaches for addressing these challenges. We consider the proliferation of human trafficking within and across the United States to be one of the most pressing challenges.