http://www.dailymail.co.uk/news/article-2304791/How-art-establishment-helped-paedophile-painter-Graham-Ovenden-away-20-years.html

Great article about Graham Ovenden (artist and convicted pedophile). Princess Diana commissioned a painting from him of a young girl with her ass exposed https://www.artforum.com/news/id=55526

Art is a fantastic means of suppressing accusations of nefarious behavior since it is extremely subjective and any substantial criticism of an artist related to the content of their work can easily be classified as an attack on free speech and shut down with a "thought terminating cliche"