This is a tough circumstance, though - basically the ruling decided that having hand-drawings or journals in a person's possession should receive the same protection as any other form of 'offensive' art . . . think "elephant shit on a picture of the Madonna" as an American example.
I think that the US Supreme Court would have to find similarly, should the case be presented - public morality isn't supposed to be legislated with regard to expression (and thus art), to my knowledge, regardless of how offensive or sick it may seem to you and me.