Since "contesting paternity" means legally contesting paternity in a court of law, another context would be to casually test paternity via a third party.

Yet another example of a situation where analyzing genetic information could be useful would be students studying forensics or any person at all interested in forensics for whatever reason, even by hobby. "Whoops, I accidentally discovered two strands of hair share genetic information, so I just committed a crime."

France is one step closer to having thought police.