I expect, within five years...that every single murder or rape case will be solvable, if there is DNA on the scene. However, it’ll mean tons of research time after they find the ‘link’ in the DNA databases, and sorting through potential match-ups.
I get notifications of “new relatives” all the time. Most are like third, fourth of fifth cousins.
That is pretty far back in the family tree. That’s a lot of family groups and are very spread out.
Would take tons of man hours to sift through, research and send out interview teams.
You clearly do not understand how much DNA is everywhere.
I see many innocent people being convicted simply because their DNA was found at the scene.
Criminals will learn how to leave another person's DNA at the crime scene and/or on the instruments of crime.
When fingerprinting was first used, people said the same thing.....all crimes will be solved....these are just tools that help....not a cure-all.