Computerisation is a process taking place in all segments of human society. Croatian law courts will have to undergo implementation of new sophisticated computer technologies. Bad working conditions in law courts are the primary problems requiring judicial system computerisation. In computerisation of the court register of commercial courts all data should come from a central database, immediately showing information recorded in specific registers. It is necessary to pass special regulations such as a book of rules on transformation of manually kept registers into electronic databases, and a book of rules on keeping and maintaining such databases and on permitting access to data using electronic communication.