http://blogs.photopreneur.com/use-your-photoshop-skills-to-solve-murders

“It’s a scene found in every cop show. The detective takes a photo of the crime scene to the police department’s technician. The technician blows it up using a piece of super-slick software, spots a blurry anomaly in an area the size of a pixel, tells the cop where he can find the murder weapon and solves the crime — leaving the detective to take the credit, the girl and a starring role in the sequel”