Here is something that perhaps most genealogists never considered: how to catch a violent criminal by using the genealogist's own blood sample.

Genetic genealogists like CeCe Moore are cracking cold cases and transforming policing. As DNA analysis redefines ancestry and anonymity, what knowledge should we be permitted to unlock?

You can read an interesting article about all this written by Raffi Khatchadourian and published in The New Yorker at: https://www.newyorker.com/magazine/2021/11/22/how-your-family-tree-could-catch-a-killer.