A Heuristics Approach for Fast Detecting Suspicious Money Laundering Cases in an Investment Bank Year: 2009 Volume: 3 Issue: 12 2889 - 2893 Pages Authors: Nhien-An Le-Khac Sammer Markos M-Tahar Kechadi Abstract: Today, money laundering (ML) poses a serious threat not only to financial institutions but also to the nation. This criminal activity is becoming more and more sophisticated and seems to have moved from the cliché of drug trafficking to financing terrorism and surely not forgetting personal gain. Most international financial institutions have been implementing anti-money laundering solutions (AML) to fight investment fraud. However, traditional investigative techniques consume numerous man-hours. Recently, data mining approaches have been developed and are considered as well-suited techniques for detecting ML activities. Within the scope of a collaboration project for the purpose of developing a new solution for the AML Units in an international investment bank, we proposed a data mining-based solution for AML. In this paper, we present a heuristics approach to improve the performance for this solution. We also show some preliminary results associated with this method on analysing transaction datasets. Keywords: data mining anti money laundering clustering heuristics.