Bed bugs, Cimex lectularius: Undercover agents in forensic investigations
2025
Bed Bugs as Forensic Tools
Sample size: 190
publication
Evidence: moderate
Author Information
Author(s): Kelly A. Meiklejohn, Coby Schal, Khalid M. Lodhi
Primary Institution: North Carolina State University
Hypothesis
Can bed bugs be used for human blood identification and Y-STR profiling?
Conclusion
Bed bugs can successfully provide human DNA for profiling, especially within 60 to 72 hours after feeding.
Supporting Evidence
- RSID blood testing was successful from bed bug tissues regardless of blood meal type.
- Complete Y-STR profiles were generated from bed bugs fed human blood up to 60-72 hours post-meal.
- As time post-blood meal increased, DNA quantity decreased and degradation increased.
- Bed bugs represent a largely untapped source of human DNA for forensic casework.
Takeaway
Bed bugs can help solve crimes by providing human DNA from their blood meals, especially if collected soon after feeding.
Methodology
Bed bugs were fed human blood and collected at various intervals to test for DNA profiling capabilities.
Limitations
The study was limited by the artificial feeding method and the need for further research with larger sample sizes and diverse blood donors.
Digital Object Identifier (DOI)
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