Eat Junk Food, Commit a Crime, and Leave Visible Fingerprints for Cops

Consuming processed foods on a regular basis has contributed to a higher level of salt excreted through fingerprints. Many processed and junk foods possess a high level of sodium (generally used as a perseverative), which in turn allows fingerprints to become more visible on metal surfaces leaving behind a corrosive chemistry, even after the print has been wiped away.

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“This would be particularly helpful for terrorist type crimes where the nature of the incident would tend to obliterate fore...