So, on your lovely stroll in the park, you turn a corner, and to your shock, see a 12-year-old being brutally raped right in front of you.
    WHAM. You are now a criminal, guilty of recording, distributing, and possessing child pornography.

That makes no sense whatsoever. The author is completely stretching it to make his point valid. It's unlikely you would be charged by handling proofs to authorities in the first place; and if you do for any reason, a judge can obviously distinguish between possession of pornography and the proof of a crime.