I may have a story saved on an old sd card somewhere.. but I think it was Italian? A major crime was solved by pattern matching DNA to a close relative, which brought about a few people in the town who's DNA was 90(?)% similar or something.. they did find the killer/rapist whatever they were looking for..
but the process of investigating and questioning led investigators, family members, and through rumor / whispering and news articles to discover that one of the grandparents (of a well known family) had cheated and birthed a love child that was assumed to be of whatever family name.. and then they had kids - and they all had positions in the town.. but now the truth was known that none of those grand kids, their families, etc were actually part of the whatever-family-name dynasty.
A whole group of people and a town and some industries changed forever because dna is similar (and much dna is not as well) - and the use of this technique roping in and affecting others that had nothing to do with alleged crime - certainly can have other real world consequences.
but the process of investigating and questioning led investigators, family members, and through rumor / whispering and news articles to discover that one of the grandparents (of a well known family) had cheated and birthed a love child that was assumed to be of whatever family name.. and then they had kids - and they all had positions in the town.. but now the truth was known that none of those grand kids, their families, etc were actually part of the whatever-family-name dynasty.
A whole group of people and a town and some industries changed forever because dna is similar (and much dna is not as well) - and the use of this technique roping in and affecting others that had nothing to do with alleged crime - certainly can have other real world consequences.