In 2013, the US Attorney’s Office in Newark, New Jersey, filed an action seeking the forfeiture of a 2,000-strong collection of photographs valued at more than $15m. The works had been bought by Philip Rivkin, the owner of the Houston-based company Green Diesel, who this June pleaded guilty for his role in a massive biodiesel fraud scheme. The Attorney’s Office says the photographs were bought using the proceeds of the fraud, allegedly to launder the money.