The accuracy of a computer-based recording system of operative procedures was audited at a major district general hospital. The system is supposed to provide accurate records of theatre activity, to allow for improved nursing resource allocation and provide surgeons with a basic record of their operations. Mistakes were present in the details of 27% of the cases entered. Such inaccuracies highlight a major danger to surgeons with regard to their accountability for operations attributed to them. Mistakes can only cause further problems with regard to audit and future resource allocation.