Kiddie Porn: crime scene photos?

This is just a question that popped into my mind today. It bothers me and will continue to do so until I write it out, so here you go:

Since looking at child pornography is a crime, shouldn't looking at other crime photos also be a crime? I mean, both are photographic records of a crime. Right? I also know of people who get excited by looking at other crime photos, just as a pedophile gets excited by looking at the photos of his particular type of crime scene. Personally, I think both are very sick.

Obviously I don't think looking at any photograph can be a real wrong act, although producing them could very well be.

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