Genetic DNA investigating helps solving cases much more than violence and other kinds of investagating. It is more accurate because it involves high tech technology and technology is right 99.9 % off the time. Like the studies always involve machines and humans dont touch any of the DNA. The DNA is so small and a microscope can look through it and like that you get a high resolution image. DNA testing is very expensive and hard to do because only a couple of people know how to do it. but i believe it is worth it so that many criminals can be proven guilty.
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