Perhaps unknown by many people, the FBI has an art crime team. The U.S. Attorney for the Central District of California is prosecuting a case coming from an investigation of this team.  A recent press release of this office states that:

"A Long Beach man who is currently in custody in France was indicted today on federal charges for allegedly taking two violins that had been stolen from a member of the Los Angeles Philharmonic to Paris, where he attempted to sell them."

Press Release – Download stolen_violins.059.pdf

(esp)