Hmmm.
Rassah can you to be more specific. If I read it as about child porn and Moonshadow read it as about witchcraft, its too unclear.
MoonShadow was incorrect on his understanding of child porn laws. Possession is I legal, showing it in sort as evidence is not legal (or can be denied without question), and things like photos of family members can get you convicted for possession if they are presented as such.
What the specific is not important. The other questions asked, such as where do you draw the line, are.