Criminals who eat processed foods more likely to be discovered, through fingerprint sweat corroding metal

Dr. John Bond discovered that sweaty fingerprint marks made more of a corrosive impression on metal if they had a high salt content. The impressions left enables scientists to 'visualize fingerprints' even after the print had been removed. Fingerprints deposited on a small calibre cartridge case before firing, are magnified/enhanced. Dr. Bond said, "on the basis that processed foods tend to be high in salt as a preservative, the body needs to excrete excess salt which comes out as sweat through the pores in fingers. So the sweaty fingerprint impression you leave when you touch a surface will be high in salt if you eat a lot of processed foods-the higher the salt, the better the corrosion of the metal. Dr. Bond is currently working on a means of identifying people through sweat marks. He doesn't believe it will replace fingerprints but only give the police something to start with if there is no other forensic evidence. He believes it could be used in crimes where the nature of the incident tends to destroy all evidence, such as a bomb explosion. He believes that a sweat mark on a piece of metal or a bomb fragment could provide a clue to the type of person who perpetrated the act