MAURO FERMARIELLO / SCIENCE PHOTO LIBRARY MAURO FERMARIELLO / SCIENCE PHOTO LIBRARY
Fingerprint analysis. Perfume bottle hanging in a cyanoacrylate fuming cupboard. This is a method of making latent fingerprints visible. Latent (non- visible) fingerprints are formed from chemicals (mostly sweat) exuded through skin pores. One way to make latent fingerprints visible is to let them react with a chemical. In this case, cyanoacrylate (super glue) is heated in a sealed container, and forms a gas that reacts with latent fingerprints to form a white sticky solid. This can be dusted to enhance visibility, and then the fingerprints are photographed.
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