This is why people we’re up in arms about sites like 23andme sending your DNA analysis w law enforcement.
If you have even a distant family member w their DNA on file, they can say definitively say that you are somehow related to that person.
From there you know the suspects gender avg height hair color ….etc
Genetic Geneology.
Investigative genetic genealogy (IGG), also known as forensic genetic genealogy (FGG), is a forensic technique that uses DNA evidence from crime scenes to identify suspects or victims in criminal cases:
- How it works
IGG compares DNA profiles from crime scenes with publicly available genetic databases, such as those from direct-to-consumer testing companies. This allows investigators to trace familial relationships and build family trees to identify potential suspects.
- High-profile cases
IGG has been used in high-profile cases, including:
- The Golden State Killer
- The arrest of Bryan Kohberger in connection with four murders in Idaho
- The arrest and conviction of Adam Durborow
- A 15-year old double-murder case in Linköping, Sweden
- A 20-year old murder case in Norway
- Ethical considerations
Some say that IGG should be used with care to ensure that it's considered fair and reliable by courts and the public. They recommend using IGG as an investigative tool rather than a primary source of evidence, and limiting its use to cold cases.
- The Sherry Black Law
Signed into law on May 17, 2023, the Sherry Black Law restricts the use of IGG to violent crimes. It also establishes guidelines for using IGG, including limitations on arrests or charges.