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A possible source of reference DNA from archived treated adhesive lifters
Ashira Zamir1, Carla Oz, Ehud Wolf
1Forensic Biology Laboratory, Division of Identification and Forensic Science (DIFS), Israel Police, National Headquarters, Jerusalem, Israel.
Journal of Forensic Sciences
|February 26, 2004
Summary
DNA testing of biological material on adhesive lifters, used for gunshot residue (GSR) analysis, can resolve mislabeling in forensic cases. Archived lifters provide a valuable source of reference DNA when other samples are unavailable.
Area of Science:
- Forensic Science
- Molecular Biology
- Trace Evidence Analysis
Background:
- Adhesive lifters collect biological material and nitrite residues from gunshot wounds for forensic analysis.
- Mislabeled evidence, such as adhesive lifters from cadavers, can compromise legal proceedings.
- Biological material on lifters may be the sole remaining reference sample from victims in fatal shooting cases.
Purpose of the Study:
- To determine if DNA typing is feasible from biological material on adhesive lifters after gunshot residue (GSR) pattern analysis.
- To assess the potential of archived adhesive lifters as a source of reference DNA.
Main Methods:
- Examined biological material retrieved from adhesive lifters previously treated for GSR pattern.
- Performed DNA typing and profiling on the recovered biological samples.
Main Results:
- Successful DNA typing and profiling were achieved from the biological material on the treated adhesive lifters.
- Demonstrated that physical and chemical treatments for GSR analysis do not preclude subsequent DNA analysis.
Conclusions:
- Biological material on adhesive lifters is suitable for DNA profiling, even after GSR analysis.
- Archived adhesive lifters represent a valuable, untapped resource for obtaining reference DNA profiles from deceased individuals.