Here's what I think is an interesting and instructive little exercise in rational examination versus confirmation-bias-led instances of "seeing what you want to see".
This is the badge of the Missouri State Highway Patrol Forensic Laboratory:
[qimg]http://www.internationalskeptics.com/forums/imagehosting/40237527988d9b3987.jpg[/qimg]
Now, imagine you are trying to identify the images shown at 6 O'Clock and 9 O'Clock around the central scales of justice. They are somewhat blurred and indistinct in many reproductions, it's true. So what could those images be of?
If you are trying to mock and belittle the Missouri State Highway Patrol Forensic Laboratory (perhaps, for example, because their manual was cited as a reference by Conti and Vecchiotti...), and if you are also prepared to put aside proper examination and rational logic, you might seem very disposed to imagine that these images are of comic incongruities - after all, that would mock and belittle the Missouri State Highway Forensics Laboratory all the more, wouldn't it.
So you might decide that the image at 6 O'Clock was a dead hedgehog, or a toupee, or a camera covered in iron filings. And you might decide that the 9 O'Clock image was a French cockerel, or a Chinese pictograph, or a kangaroo leapfrogging a park bench. And then you might chuckle to yourself that you had been both "clever" and "amusing", and had succeeded in mocking the Missouri State Highway Patrol Forensics Laboratory through your need to find mock-worthy images on their badge.
But suppose instead that you looked at the images, and wondered what they might be, and applied unbiased common sense to the problem. You might, for example, guess that such a laboratory might have images or symbols related to its work. So is the image at 6 O'Clock a fingerprint? Yes, it could well be. And what about the image at 9 O'Clock? Well, a closer examination reveals - to the unjaundiced eye - that it is almost certainly a microscope. And that makes sense, doesn't it?
You might even try to locate a clearer image of the badge, in order to confirm your educated guesses. You might use Google images and find this within seconds:
[qimg]http://www.internationalskeptics.com/forums/imagehosting/thum_4023752798db8d1afe.jpg[/qimg]
Yes: as suspected, it's a fingerprint and a microscope. Just as you might expect to find on the badge of a forensics laboratory, in fact.....