Detection of explosives in hair: a brief introduction

DOCTORAL SCHOOL IN TRANSLATIONAL BIOMEDICAL SCIENCEFORENSIC MEDICINE AND SCIENCE

Detection of Explosives in Hair:a brief introduction

Tutor:Prof. De Palo, E.

PhD StudentGiacomo MUSILE

FORENSIC AIM

Challenge

Quantity

Matrices

Structure

1000 A.D.1st Explosive employed: Black Podwer

HISTORY

Le Conteur, P. and J. Burreson, I bottoni di Napoleone - Come 17 molecole hanno cambiato la storia, 2008.

...“Sed tamen salis petrae luru vopo vir can utri et sulphuris; et sic facies tonitrum et coruscationem si scias artificium"...

Bacone, R., De secretis operibus artis et naturae, et de nullitate magiae, 1618.

LURU VOPO VIR CAN UTRI

R VII PART V NOV CORUL V

..."But still take seven parts salpetra, five young pit material, five sulfur; if you know the trick, you'll be lighting and thunder”...

"R(ecipe) VII PART(es) V NOV(ellae) CORUL(i) V"

7 KNO3 - 5 C - 5 S

R VII PART V NOV CORUL V

Le Conteur, P. and J. Burreson, I bottoni di Napoleone - Come 17 molecole hanno cambiato la storia, 2008.

CLASSIFICATIONS

nitro-compound (nitro-esther, nitro-amine , nitro-aromatic)

chlorates and perchloratesorganometals

fulminatesozonides and peroxide

azidesacetylene

EXPLOSIVE DETECTION TECHNIQUES

Ion Mobility SpectroscopyMass Spectrometry

TeraHertz SpectroscopyInfraRed Spectroscopy

Laser-Induced SpectroscopyRaman SpectroscopySensors techniques

Nanotechnology

Caygill, J.S., F. Davis, and S.P. Higson, Current trends in explosive detection techniques. Talanta, 2012. 88: p. 14-29.

UV- Vis Spectroscopy

MATRICES

MATRICES

Oxley, J.C., et al., Accumulation of explosives in hair. J Forensic Sci, 2005. 50(4): p. 826-31.

1980Royal Armament Research and Development Establishment

Sanders, K.P., et al., Preliminary investigation into the recovery of explosives from hair. Sci Justice, 2002. 42(3): p. 137-42.

LITERATURE

PRELIMINARY INVESTIGATION

Sanders, K.P., et al., Preliminary investigation into the recovery of explosives from hair. Sci Justice, 2002. 42(3): p. 137-42.

TNTNG

EGDNRDX

GC-ECD

IMS Directly placedSwabbed Liquid extraction

TNTNG EGDNTATP

Oxley, J.C., et al., Detection of explosives in hair using ion mobility spectrometry. J Forensic Sci, 2008. 53(3): p. 690-3.

DIFFERENT METHODS

IMS

Oxley, J.C., et al., Detection of explosives in hair using ion mobility spectrometry. J Forensic Sci, 2008. 53(3): p. 690-3.

Oxley, J.C., et al., Detection of explosives in hair using ion mobility spectrometry. J Forensic Sci, 2008. 53(3): p. 690-3.

“EXTRACTION” METHODS

Liquid Extraction

DirectlyPlaced

Swabbed

FUTURE DEVELOPMENT

Increase number of samples

Specific detection

Type of explosives to identify

Grazie