How To: Reveal latent fingerprints on paper & other surfaces

Reveal latent fingerprints on paper & other surfaces

In this tutorial, we learn how to reveal latent fingerprints on paper & other surfaces. The item you will need to do this is crystal iodine and plastic sheeting to protect your work surface. Place your specimen into a plastic container with the iodine, then put the top on and let sit, placing your hand under to warm it up. Within a few minutes you will see a violet color vaporizing in the container. When finished, you will be able to take out your specimen and see the fingerprints that are all over it! This is a process that real scientists use and you can do yourself! The prints will only save for a couple hours, so seal if you want to keep.

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