Check this out -- from the website of the FBI art squad (and you thought I made them up!):
Art and cultural property crime - which includes theft, fraud, looting, and trafficking across state and international lines -- is a looming criminal enterprise with estimated losses running as high as $6 billion annually.
To recover these precious pieces--and to bring these criminals to justice--the FBI uses a dedicated Art Crime Team of 13 Special Agents to investigate, supported by three Special Trial Attorneys for prosecutions...and it mans the National Stolen Art File, a computerized index of reported stolen art and cultural properties for the use of law enforcement agencies across the world.
Please note: U.S. persons and organizations requiring access to the National Stolen Art File should contact their closest FBI Field Office; international organizations should contact their closest FBI Legal Attaché Office.uad