Glafira Rosales, a little-known art dealer affiliated with the formerly venerable gallery Knoedler & Co., was arrested at her Long Island home this morning, according to the New York Times.

Starting the mid-‘90s, Rosales sold paintings by Abstract-Expressionists like Jackson Pollock, Willem de Kooning, Robert Motherwell and Mark Rothko through Knoedler. Rosales's source was a private collector she refused to name. Several experts accused Knoedler of selling fakes and, soon after the gallery abruptlyclosed in late 2011, it was sued by buyers who had purchased a Pollock painting now believed to be counterfeit.

Rosales is accused of failing to disclose offshore bank accounts and filing false tax returns. Preet Bharara, the U.S. Attorney for the Southern District of New York, accused her of hiding $12.5 million from the sales of counterfeit artworks.

As quoted in the Times, Rosales's lawyer said that she "fully intends to defend herself against these charges and she is confident that when all the facts become known she will be vindicated."