Explanation:
this is why
Individualized evidence is unique and can be directly linked to a specific person/source. b) Identified evidence shares a common source it can be grouped into a class of items having similar properties.
Why fingerprints are specifically individualized
The basic size, shape, and spacing of dermatoglyphs appear to be influenced by genetic factors. ... These developmental factors cause each person's dermatoglyphs to be different from everyone else's. Even identical twins, who have the same DNA, have different fingerprints.
