This directory of over 170 criminal justice information sources is based on a 1986 survey of more than 400 criminal justice agencies. The following guidelines were used to select organizations/information resources: (1) the organization's service area is national or regional in scope; (2) the provision of criminal justice-related information is a major function of the organizations; (3) the organization's information services include one or more of the following: data base searches, document dissemination or delivery, practical information on setting up programs, reference services, and technical assistance; (4) the organization answers telephone and mail requests and does not require users to visit the facility to obtain information; and (5) costs for services or membership are not prohibitive or excessively restrictive. The following types of information are included: parent organization/sponsoring agency, information center/library, address, telephone number, user restrictions, year established, head of center, number of staff (professional, support, and volunteer), contact person, objectives, services offered, collection site, and publications. (ABL)