People can see and directly compare fingerprints, but DNA only showes up after extensive tests which gives it much stronger constitutional protections.  Further it&#x27;s only relevant in significant quantities as individual cells may end up hundreds of miles from where an individual has ever been.<p>Where you at the scene of the crime, or did you happen to walk by the factory where the shelf was manufactured?<p>PS: As we get better at testing DNA we ar e finding it less relevant.