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3D GPR in forensics: Finding a clandestine grave in a mountainous environment
Alexandre Novo1, Henrique Lorenzo, Fernando I Rial
1EUET Forestal, University of Vigo, Campus A Xunqueira s/n, 36005 Pontevedra, Spain. alexnovo@uvigo.es
Forensic Science International
|June 18, 2010
Summary
This study used ground-penetrating radar (GPR) to locate a clandestine grave in a mountainous area. The 250MHz antenna proved effective for detecting buried human remains and metallic objects.
Area of Science:
- Forensic Science
- Geophysics
- Archaeology
Background:
- Locating clandestine graves is a critical forensic challenge, especially in complex terrains.
- Older graves (10-20 years) pose unique detection difficulties due to environmental degradation.
Purpose of the Study:
- To demonstrate the efficacy of ground-penetrating radar (GPR) in locating a clandestine grave.
- To assess the suitability of a 250MHz GPR antenna for detecting human remains and metallic objects in a mountainous environment.
Main Methods:
- Conducted experimental burials of a metallic pick to simulate grave contents.
- Calculated synthetic radargrams to predict GPR signal reflections.
- Employed a 250MHz GPR antenna for a comprehensive survey in a challenging mountainous terrain.
Main Results:
- The 250MHz antenna successfully detected the buried metallic pick.
- Experimental data informed the selection of GPR parameters for the field survey.
- The chosen GPR system facilitated a balance between target detection and efficient data acquisition.
Conclusions:
- GPR, specifically with a 250MHz antenna, is a viable tool for clandestine grave detection in difficult environments.
- Experimental modeling and antenna suitability tests are crucial for optimizing GPR surveys in forensic investigations.
