We leave latent fingerprints everywhere, due to the natural oils and perspiration of our hands. On a crime scene, what is used to develop them?
Answer Aluminum powder
Latent fingerprints are invisible to the naked eye and require the application of aluminum powder. Applied with a brush, the fine powder allows forensic scientists to see the oil and perspiration deposits by making the prints visible.
Last updated 5 years ago · 7.4K views · SOURCE
