A project was devised to develop study materials for a computer-assisted instruction (CAI) course in police training, to develop computerized case problems, and to evaluate the effectiveness of the learning materials as compared with conventional classroom instruction in the same subject areas. Both an experimental group (police cadets at Golden West Police Academy who studied the course materials through use of a syllabus and CAI) and a control group (police cadets at Los Angeles Police Academy who studied the same subject through conventional classroom instruction) took intelligence tests and personnel tests; results of these tests allowed 23 matched pairs from control and experimental groups to be formed. At the conclusion of the training program, all subjects completed a written examination. Results of analyses of performance scores on the examination showed that the experimental group performed significantly better than the control group. Apparently, then, CAI and independent study are effective techniques for police training and should be investigated further and expanded. (SH)