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Development and validation of a fast and automated DNA identification line
Corina C G Benschop1, Martin Slagter1, Jord H A Nagel1
1Netherlands Forensic Institute, Division of Biological Traces, Laan van Ypenburg 6, 2497GB The Hague, the Netherlands.
Forensic Science International. Genetics
|June 12, 2022
Summary
Forensic DNA profiling is now faster with the automated Fast DNA IDentification Line (FIDL) software. This system speeds up DNA analysis and reporting, providing crucial investigative leads quickly.
Area of Science:
- Forensic Science
- Bioinformatics
- Genetics
Background:
- Efficient DNA profiling is crucial for generating timely investigative leads in criminal casework.
- High-volume forensic DNA analysis requires streamlined workflows to meet demands.
Purpose of the Study:
- To develop and validate automated software solutions for forensic DNA profile analysis.
- To implement the Fast DNA IDentification Line (FIDL) for enhanced casework efficiency.
Main Methods:
- Development of software for automated DNA profile analysis, contamination checks, donor inference, and database comparison.
- Validation through component testing, database search strategy evaluation, and end-to-end testing in casework scenarios.
- Parallel testing in a production environment alongside standard casework procedures.
Main Results:
- The automated FIDL system successfully retrieved the same DNA database candidates as manual workflows.
- The software demonstrated correct data flow, reproducibility, robustness, and accurate flagging of results requiring manual review.
- Automated reports were generated within three working days, with FIDL analysis taking under two hours.
Conclusions:
- The Fast DNA IDentification Line (FIDL) is validated for use in criminal casework, improving efficiency and speed.
- Automated reporting provides rapid investigative leads, enabling prompt police action.
- FIDL facilitates a uniform and efficient process for handling large volumes of forensic DNA traces.
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