The Office of the Comptroller of the Currency has  updated its Bank Secrecy Act examination guidelines to include details on   how to detect money laundering.   
The 101-page booklet, mailed to OCC examiners and national banks late  last week, recommends strong "know your customer" policies to detect   money laundering. The guidelines urge banks to make a reasonable effort to   learn the true identity of all customers and their businesses.     
  
"A know your customer policy is obviously crucial on the loan side, but  it's also very important on the deposit side," said Robert B. Serino, OCC   deputy chief counsel.   
The new handbook includes a list of entities that criminals often use to  launder money, including casinos, offshore banks, and leather-goods stores.   At the request of bankers and examiners, the OCC also added a six-page list   of tip-offs to potentially suspicious activities. These red flags include   large deposits of $50 and $100 bills, customers who frequently transfer   funds among multiple accounts, and business owners who make several   deposits on the same day at different bank branches.           
  
The Riegle Community Development and Regulatory Improvement Act of 1994  directed the four bank and thrift agencies to beef up their procedures to   detect money laundering. The Federal Deposit Insurance Corp. updated its   Bank Secrecy Act exams in May; the other regulators have not completed   revamping their guidelines.