Re: depends on which side of the Atlantic
"It's entirely possible for an image to be child pornography without depicting any kind of abuse."
I've heard of cases where people have been done for junk mail in their letter box containing pictures of childrens clothing or fully clothed children, tho how much is urban myth and how much is reality I cannot say. If some of what I have haerd is true images can be considered child porn without even containing children.