F
ingerprints are the most common and important uses in a criminal
investigation for individual identification. It is the most important
criminal investigation clue which is used by forensic investigators for
centuries due to its two most important features First is their persistence,
and the seconds one is their uniqueness.
In crime shows, detective movies, criminal cases, and other places where
police investigate the case investigator's one of the main tasks is that
recover fingerprint impression from the crime scene. This method of
fingerprint helps to cop in investigating the case and find the suspect. As
per the forensic, they divide these fingerprints according to the
investigation into three types. These three categories are the following- 1
PATENT PRINTS, 2 LATENT PRINTS, 3 PLASTIC PRINTS.
PATENT PRINTS
Patent fingerprints have occurred when the skin of the hand or finger
comes in touch with a smooth surface of another object or items like
paint, grease, blood, ink, or dirt. These types of fingerprints are easily
visible with human eyes, it does not require any kind of optical or
microscope to look into. that's why this is also called Visible Print.
These can be photographed directly by camera there is no need for any
powder and other objects to find them.
LATENT PRINTS
Latent print comes when a finger touches an object like a table, wall,
window, glass, and other objects. This fingerprint comes when skin sweat
and oil come in contact with the surface of another object. We cannot see
these types of fingerprints directly from our eyes we have to need optical
which can find it and we can not capture them directly we have to use
powder, chemicals,s and other techniques to make them visible.
PLASTIC PRINTS
Plastic fingerprints are made by pressing your fingers in fresh paint wax,
soap, putty, and it's made when fingers touch the soft malleable surface.
These are like patent prints these are easily observable by human eyes
there is no need for any other types of additional process for their
visibility.
