The focus of the study was to determine the commonalities, challenges, and best practices of ILP programs so that they could be replicated in other jurisdictions. The study found that the following commonalities were a critical part of successful ILP programs: command commitment, problem clarity, active collaboration, effective intelligence, information sharing, clearly defined goals, results-oriented tactics and strategies, holistic investigations, officer accountability, and continuous assessment. To identify these factors, BJA examined ILP programs from selected agencies across the country that were geographically diverse and varied in size and available resources. In addition to program information collected from these agencies, 10 agencies were selected for an in-depth review of policies and data as well as interviews with agency personnel. The review of these programs found that the most successful programs had certain factors in common that led to their success. In addition, the review found that the ILP was often complemented by other policing practices, such as community policing, problem solving, and CompStat based on robust data collection and analysis. The 10 agencies reviewed were located in Austin, TX; Evans County, GA; Medford, OR; Milwaukee, WI; Palm Beach County, FL; Phoenix, AZ; Richmond, VA; San Diego, CA; San Francisco, CA; and Tampa, FL.