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how does"DNA fingerprinting" helps in forenscic activities?

It is the genetic material of a cell.  DNA  can also be described as the blueprint of an organism.

Most DNA is located in the cell nucleus (where it is called nuclear DNA)


A fingerprint is a unique image produced when the folds, twists, and turns of the ridges on the pads of the fingers are scanned or pressed on paper after being pressed on ink. Every person in the world has distinct variations in their ridge folds, twists and turns, so a fingerprint image is like a little stamp.

A DNA fingerprint is the same for every cell, tissue and organ of a person. This DNA fingerprint cannot be altered by any known treatment.

It makes sense that DNA evidence has become such a powerful crime solving tool because no person's DNA fingerprint is the same except for identical twins. This means that DNA collected from a crime scene can either link a suspect to the evidence or eliminate them which is why accurate DNA fingerprinting is critical as a crime solving tool.
Crime victims can be Identified and crime scenes can be linked through DNA profiles.


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