What is finger prints made off?
Fingerprints are made from the oil in a person's body.
If police find a gun and find finger prints on it can they charge the person with their prints on it?
It is the forging or faking of finger prints of course. When a person does not want his finger prints in a data base or does not want hi true identity found out by some sort of authorities they will create or alter their real finger prints somehow. In the movie "The Dark Knight" the Joker character is said to not have any finger prints in the scene where he has been taken into custody…
Every person has different fingers prints. A persons finger print can be compared with each person and their identity eliminated. They are formed during the very early stages of pregnancy but their shape is NOT controlled by genes. Identical twins who have identical DNA still have different finger prints making finger prints still a more positive test than DNA.