The directory lists national organizations primarily, but also includes regional and local organizations of special interest. International organizations listed have a significant number of American members, a U.S. chapter or subcommittee, or work applicable to law enforcement in the United States. The organizations are listed alphabetically. Each entry consists of the organization's title, mailing address, officer, telephone number, year founded, number of members, number of staff, description of purpose and activities, affiliations, publications, and frequency of meetings. Subject index.