virtual child pornography

Hi, I have a question regarding child pornography.

I haven't been following closely, but I have heard that there have been 
attempts of legislations after the CDA to regulate online pornography. I am 
particularly wondering what the relevant law is regarding a picture 
depicting non-existing person in a sexual manner when the person looks like 
a minor. Is it considered a child pornography? For example, are we supposed 
to delete those things immediately if we find it on the wikipedia server? Or 
can we go through regular VfD procedure?

We would most probably delete such stuff anyway for moral and practical 
ground, but I thouhgt I would learn about it anyway.

We are currently dealing with some potential troll/vandal who put links to 
external porn pictures in pornstar articles. If this person (we are not sure 
if there is only one person) comes back to annoy us, it would be helpful to 
know to make quick and responsible decisions. (rather than, say, discussing 
general moral principles that japanese wikipedia should follow regarding use 
of nude pictures or non-nude somewhat sexual pictures, etc. ).

thanks for your attention,

Tomos

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