The aim of this project is to establish a desirable information environment adjusting to need and behaviour of legal professional in Korea. For this purpose, present situation of information sources in printed form and computerised systems were examined. Printed sources were evaluated based on commonly used criteria title by title. Operation of the two systems, LIRES and SCS, was described based on written documents and on interview with the system designers. Professional's attitudes toward legal information, information sources, and computerisation were surveyed. Responses made a distinction between groups of practitioners and professors to compare the results. Differences in attitudes towards library, information sources, and information seeking habits between two groups were identified. Capabilities of the computerised systems were analysed and compared with the potential users' needs and behaviours as found by the survey. Also, functions of the two systems were analysed by practical use of them, which was carried out by application of five legal questions to each system. According to the analysis, it was identified that the problem of search method which was a main factor of users' dissatisfaction with the printed information sources, could not be completely cleared up by the systems. For development of the information sources, improvement of search method of printed sources was suggested. Also, advancement of the two systems in the direction of utilisation of computer capacity for searching and of expansion of input data adjusting to potential users' needs was recommended. In addition, in order to maximise the use of the two systems, integration of them, by connecting them to the Dacom-Net, and then to the distributed database system as an efficient interface was recommended. The configuration required of such an interface was demonstrated by the example of an experimental system, CONIT.