Forensic Genetic Genealogy

What is forensic genetic genealogy?

Forensic genetic genealogy (FGG) is an investigative technique that combines advanced DNA analysis with genealogical research to generate leads in criminal cases. Before the genealogical research can begin, a DNA profile must be developed using single nucleotide polymorphism (SNP) testing or whole genome sequencing (WGS)—methods that generate hundreds of thousands of genetic markers.

Once a suitable SNP profile is generated, experienced and board-certified genealogists use it to research ancestry and build family trees to develop investigative leads. DNA analysis from a person of interest is then used to determine if the individual is a match.

Does Sorenson Forensics offer in-house FGG?

Sorenson Forensics does not conduct SNP testing or have genealogists on staff, but we are partnered with Othram, a company that can help solve your cases using genome minisequencing and forensic genetic genealogy. Per the DOJ’s policy, STR testing and CODIS searches should be conducted first to attempt identification before considering SNP testing and FGG.

How effective is forensic genetic genealogy?

FGG has proven to be a powerful tool in solving cases, but it should only be used after all other investigative leads and traditional forensic methods, such as STR testing, have been exhausted. When applied appropriately, it has helped identify unknown suspects and bring long-unsolved cases to resolution. See Othram’s success stories for real-world examples.