Robert Davies may go to jail because he sold a fish he caught. He caught the fish, a sturgeon, in Swansea Bay, Wales. Sturgeon is "royal fish," meaning they belong to the crown under British law. Davies says he offered it to the queen, as required by law, and she turned it down. So he sold it at auction. But sturgeon is also classified as endangered under British law, and it's illegal to sell them. However, if he'd kept the fish or given it away there would have been no problem.