Abstract
Terrorist crime usually makes use of improvised explosive disposals (IEDs) which, especially in national environments, consist of postal or pipe bombs often assembled by using plastic or paper envelopes, adhesive tapes, electric components such as switches, batteries, cables, etc. To date it has been considering quite complex to recover DNA in quality and quantity proper for STRs typing aimed at the identification of the manufacturer of the IED especially due to the very serious damage degree of the evidence (exposed to high temperatures). In this work we tested saliva and touch evidences (perspiration), usually found on a postal package, deposed inside the postal bombs charged with deflagrating or detonating explosives in different quantities and we evaluated the possibility to achieve DNA profiles useable for identification purposes from such kind of post-explosion biological evidences. We demonstrated that with new generation multiplexes it is possible to gain STRs profile useful for identification purposes even from highly burned and degraded bomb debris.
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