Partnerships between law enforcement leaders and academic researchers have resulted in remarkable successes over the last 30 years. Policing practices in vital areas of criminal justice have been influenced by robust research projects that have led to substantive and sound policy recommendations. But despite notable successes, much remains to be done. The powerful potential of law enforcement research partnerships has not yet been fully realized. Existing research partnerships too frequently suffer from a number of predictable but unresolved problems, and very few of the 17,580 law enforcement agencies across the United Sates have even begun to reap the benefits of research partnerships.