Types of Fingerprints

1.PLASTIC PRINTS - are visible, impressed prints that occur when a finger touches a soft, malleable surface resulting in an indentation.

2. LATENT PRINTS - are fingerprint impressions secreted in a surface or an object and are usually invisible to the naked eye. These prints are the result of perspiration which is derived from sweat pores found in the ridges of fingers.

3.  PATENT PRINTS - are visible prints that occur when a foreign substance on the skin of a finger comes in contact with the smooth surface of another object.

Through these types of prints many people are caught for the crimes they committed and if we didn't find these prints it would be harder to find the criminal.

Citations:http://www.fingerprinting.com/types-of-fingerprints.php