An Evaluation of Internal Control System for Fraud Prevention (Case Study at PT Erda Indah)

This research have purpose to evaluate the implementation of internal control system at PT Erda Indah for fraud prevention. The data analysis method which was used is qualitative descriptive analysis with a case study approach. The analysis was performed by describing or depicting factual condition of research object to find out and to analysis fraud problem which was faced by research object. Then an alternative and suggestion were given to solve the problem. The analysis was performed based on standard Committee Of Sponsoring Organization (COSO), control environment, risk assessment, information and communication, control activities, and monitoring analysis. This analysis result showed that the element of control activities  and monitoring elements still have a weakness in applied, while elements of the control environment, risk assessment  elements, and the elements of information  and communication has been good in applied . Key word : internal control system, fraud, fraud prevention