A 40-Year Question Addressed in 48 Hours | FGG Case Study for Law Enforcement

A 40-Year Question Addressed in 48 HoursFractional FGGWorking from only two low-cM values, an investigative identification path was developed within 48 hours.Investigative problemA decades-old case with only minimal genetic-match data to work from.Prior case statusRoughly 40 years without resolution.Operational challengeOnly two low centimorgan (cM) match values were available, and expensive reference testing was a concern.Work performed

Walked the agency through the upload to the appropriate law-enforcement databases.

Focused analysis on the matches most relevant to the investigation.

Developed a person-of-interest identification path from only two low-cM values.

Reached an identification of the person of interest without expensive reference testing.

Key investigative decisionConcentrate limited match data on the most investigatively productive avenue first.OutcomeThe agency was provided a person-of-interest identification to pursue and corroborate through its own investigation.Lesson for law enforcementEven sparse genetic data can support investigative direction when guided by investigative logic; the result must still be independently verified by the responsible agency.Related service: Fractional FGGAll case studies · Schedule an Agency Consultation