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.
Um, no. Sorry. Certain officials are exempt from possession, because they are the cops that persue this kind of crime, and must have a base reference that the court has previously declared defines the crime. Also so that they can actually posses evidence. Certain professionals have legitimate access to such things, so that they can assess the impact of the crime on both the victims and the pedafile accussed, as well as
understand pedafiles and their psycological dysfunctions. Medical professionals have exemptions, because otherwise some medical photos would fall into the catagory of child porn.