In July 2011, Walter M. Banko Enterprises Ltd., attempted to import four pieces of antique Greek pottery through the point of entry at Rouses Point, N.Y. Based on previous investigations and seizures from Walter M. Banko Enterprises Ltd., law enforcement detained the shipment to determine if the pieces had been listed as lost or stolen. In November 2011, HSI Rouses Point seized two of the four pieces of Greek pottery, both from the 5th century B.C. The items were identified as an antique pottery piece titled “Skyphos” and a red-figured pottery krater. These two pieces were seized once they were confirmed to be the same pieces linked to a well-known trafficker of Italian cultural artifacts.The 'well-known trafficker of Italian cultural artifacts' appears to be Gianfranco Becchina.
Banko has been linked to a marble janiform head, returned to Italy on a previous occasion.