Answer:
Because its for your own good. For your future
Lara used ninhydrin. Ninhydrin is generally applied with a spray bottle, and will work with the amino acids within the evidence to produce a purple-effect. This is also known as Ruhemann’s Purple.
Answer:
How do scientists match a fingerprint to a specific person?
The individuality of fingerprints is due to ridge characteristics, which are ridge endings, enclosures and other details. Identical fingerprints not only show the same ridge characteristics, but they show them in the same location on the finger.
What makes fingerprints individual?
There's no single cause for your unique fingerprint design. Instead, it's the result of both your genes and your environment.
