Forensic scientists routinely evaluate whether a DNA interpretation method is scientifically valid. Judges ask a related but different question: is the method reliable enough to be admitted in court?
In March 2026, the United States Court of Appeals for the Third Circuit issued its precedential decision in United States v. Anderson, affirming the admissibility of computer-based probabilistic genotyping evidence under Federal Rule of Evidence 702 and Daubert.
The opinion provides an unusually detailed explanation of how courts evaluate scientific reliability. A recent Forensic Magazine article, “How Courts Decide When Computer DNA Evidence Is Reliable,” distilled the court’s reasoning into a practical educational framework.
This presentation expands that framework by examining the court’s analysis prong by prong.
Each Daubert reliability factor is considered separately: testability, error rate, standards, peer review, and general acceptance.
For each factor, the presentation asks the court’s central question. It then examines the defense challenge, the scientific evidence before the court, and the court’s conclusion.
Attendees will see how the court evaluated common criticisms of forensic software, including claims of “black box” operation, proprietary source code, software complexity, validation limitations, and alleged uncertainty in reported results.
The presentation explains why the court found these arguments unpersuasive when weighed against extensive testing, peer-reviewed publication, validation studies, standards compliance, and broad scientific acceptance.
The repeated five-prong structure reveals how judges think about scientific evidence. It shows how courts distinguish reliability from perfection, how scientific validation becomes legal evidence, and why some criticisms affect evidentiary weight rather than admissibility.
Although Anderson concerned probabilistic genotyping, its lessons extend to forensic software and emerging scientific technologies generally.
Attendees will leave with a practical understanding of what judges ask, what opponents argue, what scientific evidence matters, and how courts ultimately decide whether a forensic method is reliable.
References
Perlin MW. How Courts Decide When Computer DNA Evidence Is Reliable. Forensic Magazine. 2026.
United States v. Anderson, No. 25-1223 (3d Cir. Mar. 26, 2026).
Forensic scientists routinely evaluate whether a DNA interpretation method is scientifically valid. Judges ask a related but different question: is the method reliable enough to be admitted in court?
In March 2026, the United States Court of Appeals for the Third Circuit issued its precedential decision in United States v. Anderson, affirming the admissibility of computer-based probabilistic genotyping evidence under Federal Rule of Evidence 702 and Daubert.
The opinion provides an unusually detailed explanation of how courts evaluate scientific reliability. A recent Forensic Magazine article, “How Courts Decide When Computer DNA Evidence Is Reliable,” distilled the court’s reasoning into a practical educational framework.
This presentation expands that framework by examining the court’s analysis prong by prong.
Each Daubert reliability factor is considered separately: testability, error rate, standards, peer review, and general acceptance.
For each factor, the presentation asks the court’s central question. It then examines the defense challenge, the scientific evidence before the court, and the court’s conclusion.
Attendees will see how the court evaluated common criticisms of forensic software, including claims of “black box” operation, proprietary source code, software complexity, validation limitations, and alleged uncertainty in reported results.
The presentation explains why the court found these arguments unpersuasive when weighed against extensive testing, peer-reviewed publication, validation studies, standards compliance, and broad scientific acceptance.
The repeated five-prong structure reveals how judges think about scientific evidence. It shows how courts distinguish reliability from perfection, how scientific validation becomes legal evidence, and why some criticisms affect evidentiary weight rather than admissibility.
Although Anderson concerned probabilistic genotyping, its lessons extend to forensic software and emerging scientific technologies generally.
Attendees will leave with a practical understanding of what judges ask, what opponents argue, what scientific evidence matters, and how courts ultimately decide whether a forensic method is reliable.
References
Perlin MW. How Courts Decide When Computer DNA Evidence Is Reliable. Forensic Magazine. 2026.
United States v. Anderson, No. 25-1223 (3d Cir. Mar. 26, 2026).
Workshop currently at capacity. A waitlist is available to join on our registration page.
Chief Scientific and Executive Officer, Cybergenetics
Dr. Mark Perlin is Chief Scientific and Executive Officer at Cybergenetics. He has twenty years’ experience developing computer methods for information-rich interpretation of DNA evidence, and providing TrueAllele® products and services to the criminal justice community. His innovative TrueAllele computer solution replaced less accurate forensic approaches.
