How DNA Solved Cold Cases
Advances in forensic DNA testing allow investigators to analyze degraded or small biological samples from decades-old evidence. By comparing profiles against databases, agencies can identify suspects or victims in cases once considered unsolvable.
Notable DNA Cold Case Breakthroughs
Law enforcement agencies have used genealogy and direct DNA matches to identify perpetrators in long-unsolved homicides and sexual assaults. Public databases and improved testing protocols have turned historic evidence into actionable leads.
Why DNA Evidence Matters in Cold Investigations
DNA can place a suspect at a scene, exclude innocent individuals, and link separate crimes to the same offender. When stored correctly, biological evidence remains usable for many years, supporting new charges or exonerations.
For more on forensic DNA methods, see the Federal Bureau of Investigation's overview at FBI Forensic Analysis.
