The research used a repeated-measure field survey, which was conducted in 1976 and 1988. Results revealed that participants regard computers as a major tool in crime control efforts. Although the use and value of computerized searches are overwhelmingly acknowledged, variations existed in the use of computers. Characteristics of both the innovation and the user appeared to be associated with the extent of use. User- friendly systems and formal training appeared to be the more important variables of those studies. Technical friendliness, computer literacy, and prior computer experience had less close associations with use. Findings indicated that the full use of computer search capabilities will depend on improvements in both the user friendliness of the systems themselves and in training police professionals in the use of the systems. Tables, notes, and 49 references (Author abstract modified)