I tried to stay open minded about this but when Paul Witehouse gave evidence and said they had not discussed any research it changed my mind. If he was genuinely researching a role I think it is not unreasonable to mention it, and tbh looking at those pictures for any reason and not being sick to your stomach and wondering what the hell you were thinking is just weird.
If you look at it you look at it and that makes you guilty, I cant imagine what would possess someone who wasnt into child porn to want to see it, it would haunt me if i had to view it.