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t. e. A fingerprint is an impression left by the friction ridges of a human finger. The recovery of partial fingerprints from a crime scene is an important method of forensic science. Moisture and grease on a finger result in fingerprints on surfaces such as glass or metal.
Your fingerprints are “rolled” across a glass plate and scanned. It is faster, cleaner and more accurate than the old ink-and-roll method. A percentage of the population have difficult-to-read fingerprints, which can be due to age or certain types of work such as construction, or from prolonged exposure to various chemicals.
