Michael Zeldin, the global head of Deloitte's Anti-Money Laundering Practice, shares tips on how to protect against "smurfing" in the Winter 2008 issue of Banking New York.  The term "smurfing" refers to the small army of people hired by money launderers to make small denomination bank deposits. 
Smurfing, and its more recent variation, micro-smurfing, has been one of the most common ways that money launderers, most often working on behalf of drug organizations, have laundered proceeds of criminal activity.  Micro-structuring (or micro-smurfing) tries to defeat transaction-monitoring systems by making the deposits so small they "fly under the radar" of the detection rules embedded in the software systems.  While micro-structuring is difficult to detect and prevent, banks can and should be able to meet this challenge.

Click on the PDF below to read the article and smurfing prevention tips.