It was hypothesized that an individual police officer's arrest performance is affected by such factors as age, rank, length of service, educational level, income, marital status, number of children, authoritarian personality, political belief, job satisfaction, and religious orientation. Data for the study were collected from a sample of 250 police officers from the Bangkok, Thailand, police department, with 25 respondents from each of the 10 police stations with the highest crime statistics. Questionnaires based on existing English language instruments measuring the above variables were translated into Thai and administered to respondents following a briefing on the nature and purpose of the study and the need for serious, truthful responses. Analysis revealed that there were significant relationships between an individual police officer's arrest performance and the following factors: age, length of service, educational level, marital status, authoritarian personality, political belief, job satisfaction, and religious orientation. Rank, income, and number of children were not found to afffect the arrest performance of officers. The educational level of an officer proved to be the best factor for predicting arrest performance. Liberal political beliefs, high job satisfaction, younger age, shorter length of service, higher education, unmarried status, and an extrinsic religious orientation were found to be conducive to high arrest performance. The basically intrinsic orientation of Buddhism, teaching that one is not required to take any action beyond tolerance and/or compassion for his fellow creatures, is not conducive to active law enforcement. Implications of the study are that police education, maintenance of high job satisfaction, and an early retirement plan may be important policies for the Thai Police departments to cultivate. Tabular data are included. The bibliography containes ca. 120 entries. The study instrument and a vita of the author are appended. (Author abstract modified)