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Forensic genealogy is revolutionizing cold cases by merging traditional research with advanced DNA analysis, such as Investigative Genetic Genealogy (IGG). Recent updates, including improved sequencing for degraded samples and expanded public database comparisons, have helped solve over 1,100 cases as of late 2023. These breakthroughs allow investigators to turn tiny, old samples into actionable leads. 

🧬 From Cold Case to Courtroom: How DNA Updates Are Changing the Game

The world of forensic genealogy is moving faster than ever. What used to take decades—identifying a John Doe or finding a violent offender—is now happening in months, thanks to rapid advancements in DNA technology. 

If you haven't looked into how forensic genealogy has evolved in the last two years, you are missing the biggest revolution in crime-solving since fingerprinting. 

1. The Power of "Degraded" DNA

In the past, if a DNA sample was too old, exposed to heat, or contaminated, it was useless. Not anymore. New sequencing technology allows forensic scientists to work with incredibly small or damaged samples. Even if a case is 40 or 50 years old, there is a good chance that a sample previously deemed un-testable can now be analyzed. 

2. Moving Beyond CODIS

Traditional forensics relies on CODIS (the criminal DNA database). But if the perpetrator isn’t in that system, the trail goes cold. Forensic genealogy changes this by using consumer DNA databases (like GEDmatch and FamilyTreeDNA).  Instead of looking for an exact match, we are looking for cousins. By building a family tree from a 2nd or 3rd cousin match, we can work backward to identify the common ancestor and then work forward to identify the suspect.

3. The Shift to NGS (Next-Generation Sequencing)

The move from older testing methods to Next-Generation Sequencing (NGS) allows for the examination of thousands of SNPs (Single Nucleotide Polymorphisms) simultaneously. This provides a much higher resolution of a person's ancestry and familial relationships, making the identification process far more accurate and efficient. 

What This Means for the Future

Forensic genealogy is not a magic wand, but it is the closest thing we have. As databases grow and privacy-compliant policies are refined, even more cases—both criminal and unidentified remains—will be solved. 

Are you working on a cold case, or do you have a family mystery that needs a professional eye? Contact me to see how modern forensic genealogy can help.

DNA Testing Companies

23andMe:

Genetic family tree, based on other testers are placed in a genetic family tree and they can reconstruct your closer relatives (like parents/grandparents) based on other immediate DNA testers.

Ancestry ProTools:

The latest updates is to focus on enhanced genetic genealogy and research organization, including "Matches by Cluster" for visualizing DNA matches, the ability to sort shared matches by their total shared centimorgans (cM), and "Photo Insights" for AI-analyzed documentation. Digital "stickies" are also now available for tracking research. Key 2026 ProTools & Platform Updates: DNA Matches by Cluster: This new feature visualizes DNA matches by grouping them into clusters, assisting in identifying how groups of matches relate to one another (e.g., separating maternal and paternal sides). Shared Match Sorting: A highly requested update allows users to sort shared matches on a match's page by the cM shared between the match and their shared matches (not just the user's cM).Enhanced Organization (Stickies): Digital "stickies" can now be added to individual profiles for to-do lists, notes, and research tracking. These can be attached to multiple people and include formatting options like color-coded tags and hyperlinks. Photo Insights: An AI-powered tool that analyzes images and documents within the user's gallery to estimate date ranges, locations, and historical context. Auto-clustering Tool: ProTools is integrating automated clustering for DNA matches, initially targeting matches over 65 cM. Record Search Enhancements: Ancestry is applying full-text search capabilities to millions of additional record images, including probate files. These features are generally designed for serious researchers, often requiring the ProTools subscription to access, similar to the new "Networks" feature designed for mapping genetic connections.

FamilyTreeDNA:

DNA Painter updates is to focus on advanced visualization tools, including a new DNA matrix tool to compare shared DNA among multiple testers, enhanced sorting and charting within that matrix, and the "Places" feature, which maps ancestral birthplaces. Other updates include WATO Plus and continued international language translations. Key Recent Updates (2025-2026) DNA Matrix Tool: A major addition allowing users to visualize shared DNA amounts between a group of testers in a grid format, including sorting and coloring improvements. Places Feature: A new, specialized map view that displays ancestral birth locations from your family tree. Matrix Improvements: Recent enhancements include custom sort orders, improved shading options, and configurable settings that save in the browser. WATO Plus: An enhanced version of the "What Are the Odds?" tool for evaluating inheritance scenarios.

GEDmatch: 

Has recently introduced a new interactive Family Tree Visualizer with pedigree/descendant views, alongside the "AutoSegment Split" Tier 1 tool for separating parental DNA matches. Other key updates include enhanced notes for matches, improved security via Auth0/Passkeys, and better One-to-Many sorting.

Genomelink: 

As one of the top DNA data upload platforms, focusing on expanding genetic insights beyond standard ancestry tests by leveraging AI and deep ancestral data. Latest Developments and Features. New DNA Match Feature: Genomelink has added a "DNA Match" function, allowing users to connect with relatives across different DNA platforms (such as 23andMe and AncestryDNA) and access a larger database. Global and Deep Ancestry Reports: The platform has launched a "Global Ancestry" report that analyzes ethnicity on a chromosome-by-chromosome level, which can help uncover minor ethnicities missed by other tests. Specialized Ancient Ancestry: New reports include "Viking" and "Celtic" ancestry, matching DNA against 500+ ancient individuals, as well as an "Indigenous American Heritage" report. 

MyHeritage:

cM Explainer™ - A tool for suggesting how you might be related to a DNA Match based on the amount of shared DNA and ages. Chromosome Browser- A tool for viewing shared DNA segments between you and multiple DNA Matches, which can help point to a common ancestor. AutoClusters - An automatic tool that organizes your DNA Matches into clusters that likely descended from common ancestors. Ethnicities Map - Discover the most common ethnicities in each country, and find out the top countries for each ethnicity, based on data from MyHeritage DNA users.

Forensic Genealogy News
As of early 2026, forensic genealogy in Texas is experiencing a major expansion, driven by significant federal funding, new technology, and policy shifts aimed at solving decades-old cold cases and identifying unknown suspects. [1, 2, 3, 4]
Key 2026 Updates in Texas Forensic Genealogy:
  • $1 Million+ San Antonio Project: In April 2026, the San Antonio Police Department (SAPD) received over $1 million in federal funding to launch a "Cold Case Forensic Genealogy Project". This initiative targets 366 unsolved murders and 49 sexual assault cases from the past five years, plus thousands of older cold cases, using advanced DNA analysis to identify suspects through family matches.
  • New "Limited Consent" DNA Program: As of December 1, 2025, the Texas Department of Public Safety (DPS) implemented a new program under HB 1422, allowing sexual assault survivors to have evidence collected and tested without immediately reporting to law enforcement. This, combined with new investigative genetic genealogy tools, is designed to identify violent offenders, including potential serial offenders.
  • Active Cold Case Task Force: A new cold case task force, comprised of 10 investigators from the District Attorney's office and local law enforcement, is partnering to prioritize forensic genealogy in reviewing unsolved files, with a focus on cases that have sat dormant for decades.
  • Othram's Continued Role: The Woodlands-based lab Othram is heavily involved in Texas forensic initiatives, using "Forensic-Grade Genome Sequencing®" to build DNA profiles from tiny or degraded samples, which are then used for genealogical searching.
  • Expanded Legal Training: The Texas District and County Attorneys Association (TDCAA) is actively training professionals on how to use forensic genealogy in the courtroom, with free continuing legal education (CLE) courses available through August 2026. [1, 2, 3, 4, 5, 6, 7, 8, 9]
These advancements show a shift towards using forensic genetic genealogy as a routine, rather than extraordinary, tool for identifying perpetrators in homicide and sexual assault cases where traditional DNA databases (like CODIS) have failed to produce a match.
Genealogical Events in Texas
  • Texas Czech Genealogical Society Conference (Caldwell, Apr 18, 2026): 25th Anniversary event, covering AI tools.
  • 2026 CAPROCK Genealogy Conference (Plainview, Apr 11, 2026): Regional conference featuring specialized tracks.
  • TxSGS Family History Conference (Fort Worth, Nov 6-7, 2026): Texas State Genealogical Society’s annual event, featuring in-person and virtual options.
  • New Braunfels Public Library Seminar (April 2, 2026): Genealogy help for local history.
  • Taylor Public Library Workshop (May 12, 2026): Beginner-friendly "Discover Your Roots" session.