Eh?
Posession of offensive images isn't a strict liability offense.
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Cassius Kray floats like a butterfly, stings like a trout,
Sat 1 Oct 2011, 21:25,
archived)
Depends where you live
but in the UK, so far as I understand, technically they are. They weren't a year or two back but the law changed.
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boris the spider,
Sat 1 Oct 2011, 22:45,
archived)