Expanding DNA databases help solve decades‑old cold cases

DNA databases are expanding across law‑enforcement agencies. The larger repositories are being used to revisit old investigations. Recent cases show cold files being solved after decades. Genetic matches are providing new leads that were previously unavailable. Victims’ families gain closure as identities are confirmed. Police departments credit the databases for accelerating case resolution. The trend underscores the importance of continued DNA collection. Authorities plan to maintain and grow the databases for future investigations.