why do latent fingerprints stick to smooth surfaces

States of America v. Byron Mitchell Methods: The easiest method is called dusting, in which you use a very fine powder that can stick to the oil in the fingerprint. These invisible latent fingerprints are made of water, fatty acids, amino acids, and triglyceridesin other words, they result from the oil and sweat that your skin produces naturally. State of The FBI Laboratory's Latent Print Operation - Four Years After Madrid" level of features the // --> moving from coinspot to binance