My personal feeling on portrayals of child pornography (cartoons, NOT live-action) is that it's okay. If someone can get a kick out of that instead of real child pornography, then I support it because that hopefully means less live-action child porn.
But I still think it's all disgusting, and the guy obviously needs some help. Although, far be it from me to judge someone's sexual preferences.
So, my ruling would be that cartoons are not real, and cannot be included in a trial as real seeing as the characters do not have rights like living people do; it all seems very "Minority Report" to me.
~tommy