Portrait of a Woman, attributed to Goya (1746-1828). X-ray images taken of this painting in 1954 revealed a portrait of another woman, circa 1790, beneath the surface. X-ray diffraction analysis revealed the presence of zinc white paint, invented after Goya's death. Further analysis revealed that the surface paint was modern and had been applied so as not to obscure the craquelure of the original. After analysis, the conservators left the work as you see it above, with portions of old and new visible, to illustrate the intricacies of art forgery, and the inherent difficulty of detecting it.
There are many ways to launder money, from the simple to the very complex. One of the most common techniques is to use a legitimate, cash-based business owned by a criminal organization. For example, if the organization owns a restaurant, it might inflate the daily cash receipts to funnel illegal cash through the restaurant and into the restaurant's bank account. After that, the funds can be withdrawn as needed. These types of businesses are often referred to as "fronts."
In recent weeks, the art world has been rocked by perhaps the biggest forgery scandal to hit the art world since Van Meegeren’s unmasking. The extent of the Old Master forgery ring is as of yet unknown, but Sotheby’s has already issued a refund to the buyer of a $10 million Frans Hals portrait, sold in 2011 in a private sale through London dealer Mark Weiss. James Martin’s Orion Analytical, a Williamstown, Massachusetts-based company which investigates artworks, found modern-day materials in the canvas, proving it to be a forgery.
Despite those advances, the detection of fraudulent art remains a complex undertaking. It is particularly difficult to weed out forgeries in the work of modern artists whose large numbers of works and superstar statuses make them especially attractive to those who commit fraud. Pablo Picasso, for example, was a prolific artist, creating a huge number of works on canvas and on paper as well as sculptures and ceramics. Considering his vast output and the varying styles and media in which he worked, scholars have had difficulty establishing a definitive corpus for him. The prestige associated with owning a Picasso and the difficulty of attribution, especially for a drawing, made and continues to make fraudulent representations of his work hard to police.