Improving the Quality of Forensic Evidence Elemental Analysis

Improving the Quality of Forensic Evidence

Elemental Analysis of Forensic Evidence by Introducing the foster + freeman ECCO Laser Induced Identifying clandestine ‘meth’ laboratory materials Discrimination of glasses of the same RI Breakdown Determination of glass types using LIBS Security document examination Identifying fake coins Spectroscopy Gunshot Residue (GSR) screening Discrimination of office paper Discrimination of pencil lead Discrimination of match heads Brochure ECCO Brochure Trace Range Application Notes

Introducing the foster + freeman High throughput sampling of forensic trace evidence ECCO Identifying clandestine ‘meth’ laboratory materials Discrimination of glasses of the same RI Increased sensitivity Determination of glass types using LIBS Minimal sample preparation required Security document examination Identifying fake coins Minimal training required Gunshot Residue (GSR) screening Discrimination of office paper Discrimination of pencil lead Discrimination of match heads Brochure ECCO Brochure Trace Range Application Notes ECCO

Identifying clandestine ‘meth’ laboratory materials Discrimination of glasses of the same RI Determination of glass types using LIBS Security document examination Laser Induced Breakdown (LIBS) Identifying. Spectroscopy fake coins Application examples. Gunshot Residue (GSR) screening Discrimination of office paper ECCO system specifications Discrimination of pencil lead Summary ECCO Discrimination of match heads Brochure ECCO Brochure Trace Range Application Notes

Laser Induced Breakdown Spectroscopy (LIBS) LIBS technique first demonstrated in 1962 ‘real world’ applications developed in the 1980’s Advantages of LIBS analysis include: Identifying clandestine ‘meth’ laboratory materials Effective in the analysis of solidsofand liquids Discrimination glasses of the same RI of glass types using LIBS Detects a wide range. Determination of elements Security document examination Capable of detecting Identifying low ppm fake coins Gunshot Residue screening Rapid analysis produces results in(GSR) seconds Discrimination of office paper Minimally destructive Discrimination of pencil lead Discrimination of match heads ECCO LIBS Brochure ECCO Brochure Trace Range Application Notes

Laser Induced Breakdown Spectroscopy (LIBS) As the plasma plume athrough fraction aheight second the ionized gas becomes The resultant emission passes aof collection andisisproportional carried LIBS spectrum contains atomic emission peaks, the oflens which Ablation of thespectral sampleexpands, creates awithin minute plasma plume (laser spark) High powered pulsed laser passed through a focussing lens and focussed onto sample to the spectrometer excited and then relaxes creating a spectral emission. to the concentration of the element Identifying clandestine ‘meth’ laboratory materials Discrimination of glasses of the same RI Determination of glass types using LIBS Security document examination Identifying fake coins Focussing Lens Gunshot Residue (GSR) screening Collecting Sample Prism Discrimination of office paper Lens Discrimination of pencil lead Discrimination of match heads On screen results Spectrometer Brochure ECCO Brochure Trace Range Application Notes ECCO LIBS

Laser Induced Breakdown Spectroscopy (LIBS) Current detectable database elements 1 2 H He hydrogen 3 helium 4 Li lithium 11 5 Be B beryllium sodium 19 20 K potassium 37 calcium 38 Rb rubidium 55 Sr 56 87 scandium 23 Ti titanium vanadium 40 Y yttrium barium 24 V 41 Zr Fr Ra 58 La actinium 74 W 28 29 cobalt nickel 30 copper 45 46 47 ruthenium rhodium 31 zinc 76 Re 77 Os 78 Ir 79 Pt tungsten rhenium osminium iridium platinum Discrimination of office paper 59 60 61 62 63 Nd Pr Discrimination of Pm pencil. Sm lead praseodymium neodymium promethium samarium Eu europium Th thorium 92 Pa protactinium ECCO LIBS 93 U uranium 94 Np neptunium 95 Pu plutonium Am americium 81 gold mercury Gd 96 Tb 97 Cm curium 67 Dy dysprosium 98 Bk berkelium bismuth 68 Ho holmium 99 Cf californium Re 100 Es einsteinium Fm fermium Ar argon 36 Kr bromine krypton 54 I Xe iodine 85 69 erbium 18 Br Te polonium neon chlorine tellurium Po Ne Cl 53 84 Bi lead 66 terbium 83 Pb thallium 65 gadolinium 82 Tl 52 antimoney F fluorine 35 selenium Sb tin sulphur Se arsenic 10 17 S 34 As 51 Sn indium Hg 64 Discrimination of match heads 91 80 Au 33 50 In cadminium phosphorus geramanium 49 Cd silver silicon Ge galium O oxygen 16 P 32 Ga 48 Ag palladium Gunshot Residue (GSR) screening cerium 90 Ac iron 44 technetium Ce Lanthanum 89 manganese 43 74 tantalum 57 radium 27 Identifying fake coins Ta 88 francium 26 Determination of glass types using LIBS molybdenum 73 hafnium r chromium Mo Tc Ru examination Rh Pd Security document niobium Hf 25 Discrimination of the same C Mn Fe glasses Co of Ni Cu RI Zn 42 Nb zirconium 72 Ba caesium 22 Sc 39 strontium Cs aluminium 21 Ca 15 Si Identifying clandestine ‘meth’ laboratory materials magnesium 9 nitrogen 14 Al 8 N carbon 13 Mg 7 C boron 12 Na 6 xenon 86 At astatine 70 Rn radon 71 Brochure Tm Yb. ECCOLu thulium ytterbium lutetium Brochure Trace Range 101 102 103 Md No Notes Lr Application mendelevium nobelium lawrencium

Laser Induced Breakdown Spectroscopy (LIBS) Alternative analytical techniques SEM Scanning Electrode Microscope EPMA Electron Probe Micro -Analyzer XRF X-Ray Fluorescence LIBS Sensitivity clandestine ‘meth’ 100 ppm laboratory materials 1000 ppm Identifying 100 ppm 10 -50 ppm Precision Poor Discrimination of glasses of the same RI Fair-Good Determination of glass types using LIBS Qualitative Semi. Security document examination Quantitative LA-ICP-MS Laser Ablation Inductively Coupled Plasma Mass Spectroscopy <1 ppm Fair-Good Excellent Semi. Quantitative Analysis time Slow Identifying fake coins Very Slow Gunshot Slow Residue (GSR) screening Fast Slow Complexity Moderate Discrimination Complex of office paper. Moderate Easy Complex Cost of pencil lead > $100, 000 Discrimination > $600, 000 < $80, 000 Accuracy Discrimination of match heads Brochure ECCO > $200, 000 Brochure Trace Range Application Notes ECCO LIBS

Identifying clandestine ‘meth’ laboratory materials Discrimination of glasses of the same RI Determination of glass types using LIBS Security document examination Laser Induced Breakdown Spectroscopy (LIBS) Identifying fake coins Gunshot Residue (GSR) screening Application examples Discrimination of office paper ECCO system specifications Discrimination of pencil lead Summary ECCO Discrimination of match heads Brochure ECCO Brochure Trace Range Application Notes

ECCO LIBS Applications Forensic Applications Human and animal bone analysis Soil and wood analysis ‘Meth’ Labs GSR Gun shot residue screening Phosphorus Lead Comparison of paints Barium Identifying clandestine ‘meth’ laboratory materials Counterfeit currency detection Questioned document Discrimination examinationof glasses of the same RI Glass discrimination Determination of glass types using LIBS Currency Iron Security document examination Other Applications Identifying fake coins Art verification/conservation Gunshot Residue (GSR) screening Environmental monitoring Glass Corrosion chemistry Discrimination of office paper Discrimination of pencil lead Discrimination of match heads Boron Silicon Passports Titanium Maganese Calcium Brochure ECCO Brochure Trace Range Application Notes ECCO Applications

ECCO LIBS Application Notes Identifying clandestine ‘meth’ laboratory materials Discrimination of glasses of the same RI Determination of glass types using LIBS Security document examination Identifying clandestine ‘meth’ laboratory materials Identifying fake coins Discrimination of glasses of the same RI Gunshot Residue (GSR)Determination screening of glass types using LIBS Security document examination Discrimination of office paper Identifying fake coins Discrimination of pencil. Gunshot lead Residue (GSR) screening of office paper Discrimination of match. Discrimination heads Discrimination of pencil lead Discrimination of match heads Brochure ECCO Brochure Trace Range Application Notes ECCO Applications

Identifying clandestine ‘meth’ laboratory materials Discrimination of glasses of the same RI Determination of glass types using LIBS Security document examination Laser Induced Breakdown Spectroscopy (LIBS) Identifying fake coins Application examples. Gunshot Residue (GSR) screening Discrimination of office paper ECCO system specifications Discrimination of pencil lead Summary ECCO Discrimination of match heads Brochure ECCO Brochure Trace Range Application Notes

ECCO System Specifications Hardware Laser Air-cooled Q-switched Nd. YAG laser running at 0. 5 Hz 60 m. J in 7 ns at 1064 nm Spectrometer Wavelength range 225 – 930 nm with gateable detectors 0. 14 nm optical resolution in the UV Gateable back thinned CCD covering 225 – 380 nm Identifying clandestine ‘meth’resistive laboratorygate materials System Safety Discrimination of glasses of the same RI Integral CCD video camera with digital zoom Determination of glass types using LIBS XYZ precision positioning/focusing stage Security document examination Sample chamber gas inlet port Identifying fake coins NIST traceable wavelength calibration standard 1411. Gunshot Residue (GSR)Windows screening PC High specification Discrimination of office paper Class 1 laserofsafety features Discrimination pencil lead Interlocked sample chamber Discrimination of match heads ECCO Specifications Brochure ECCO Brochure Trace Range Application Notes

ECCO System Specifications Software Dedicated Casework Mode of operation Automatic detection of most elements Identifying clandestine ‘meth’ laboratory materials Discrimination of glasses of the same RI Comprehensive library of element emission lines Determination of glass types using LIBS Automatic peak ratio measurement Security document examination Identifying fake coins Automatic comparison of results by elemental ratio Gunshot Residue (GSR) screening Discrimination office Full native support for 64 andof 32 bitpaper Windows 7 Discrimination of pencil lead Discrimination of match heads Brochure ECCO Brochure Trace Range Application Notes ECCO Specifications

Identifying clandestine ‘meth’ laboratory materials Discrimination of glasses of the same RI Determination of glass types using LIBS Security document examination Laser Induced Breakdown Spectroscopy (LIBS) Identifying fake coins Application examples. Gunshot Residue (GSR) screening Discrimination of office paper ECCO system specifications Discrimination of pencil lead Summary ECCO Discrimination of match heads Brochure ECCO Brochure Trace Range Application Notes

ECCO Laser Induced Breakdown Spectroscopy for the elemental analysis of trace evidence Summary Identifying clandestine ‘meth’ laboratory materials cost Discrimination of glasses of. Rapid the same RI effective analysis Determination of glass types using LIBS Almost immediate results with no sample preparation Security document examination Identifying fake coins High sensitivity Gunshot Residue (GSR) screening Automatic detection of most elements Discrimination of office paper Discrimination of pencil lead Wide range of applications Discrimination of match heads Brochure ECCO Brochure Trace Range Brochure Application Notes ECCO

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