I think TheFlyingCamera and Matt have both made some extremely well thought out and pertinent comments about the image and the exhibition, and I fully agree with them both.

If you read further about the police investigation you will find that they are also looking into previous owners of the image, this copy and presumably others. Does this mean asking US police to investigate art collector Elaine Dannheiser who sold a copy at Sothebys ?

What ever we might think about an individual image, or the work as a whole, incidents like this show that common sense does not always prevail.