The most common types of criminals who need to launder money are drug traffickers, embezzlers, corrupt politicians and public officials, mobsters, terrorists and con artists. Drug traffickers are in serious need of good laundering systems because they deal almost exclusively in cash, which causes all sorts of logistics problems. Not only does cash draw the attention of law-enforcement officials, but it's also really heavy. Cocaine that's worth $1 million on a New York street weighs about 70 pounds (30 kilograms), while a stash of U.S. dollars worth $1 million weighs about 256 pounds (116 kilograms).
The basic money laundering process has three steps:
- Placement: At this stage, the launderer inserts the dirty money into a legitimate financial institution. This is often in the form of cash bank deposits. This is the riskiest stage of the laundering process because large amounts of cash are pretty conspicuous, and banks are required to report high-value transactions.
- Layering: This involves sending money through various financial transactions to change its form and make it difficult to follow. Layering may consist of several bank-to-bank transfers; wire transfers between different accounts in different names in different countries; making deposits and withdrawals to continually vary the amount of money in the accounts; changing the money's currency; and purchasing high-value items (boats, houses, cars, diamonds) to change the form of the money. This is the most complex step in any laundering scheme, and it's all about making the original dirty money as hard to trace as possible.
- Integration: At the integration stage, the money re-enters the mainstream economy in legitimate-looking form — it appears to come from a legal transaction. This may involve a final bank transfer into the account of a local business in which the launderer is "investing" in exchange for a cut of the profits, the sale of a yacht bought during the layering stage or the purchase of a $10 million screwdriver from a company owned by the launderer. At this point, the criminal can use the money without getting caught. It's very difficult to catch a launderer during the integration stage if there is no documentation during the previous stages.
Money laundering is a crucial step in the success of drug trafficking and terrorist activities, not to mention white collar crime, and there are countless organizations trying to get a handle on the problem. In the United States, the Department of Justice, the State Department, the Federal Bureau of Investigation, the Internal Revenue Service and the Drug Enforcement Agency all have divisions investigating money laundering and the underlying financial structures that make it work. State and local police also investigate cases that fall under their jurisdiction. Because global financial systems play a major role in most high-level laundering schemes, the international community is fighting money laundering through various means, including the Financial Action Task Force on Money Laundering (FATF), which as of 2018 has 37 member states and organizations. The United Nations, the World Bank and the International Monetary Fund also have anti-money-laundering divisions.