In Forensic Investigations

Elemental Analysis, 2) Determination of Pellet Weight in Primers, 3) Determination of Gunpowder Residues in Forensic.Investigations, 4) Detection of Explosives in Buried Mines, 5) Detection of Hidden Explosives in Baggage, and 6) Explosives Safety in Neutron Activation Analysis... 

Hanson, I. D. (2004). The importance of stratigraphy in forensic investigation, in Forensic Geoscience Principles, Techniques and Applications (K. Pye and D. J. Croft, Eds.). London Geological Society Special Publication 232, 39-47. 

Lerner, A., Shor, Y., Vinokurov, A., Okon, Y., and Jurkevitch, E. (2006). Can denaturing gradient gel electrophoresis (DGGE) analysis of amplified 16s rDNA of soil bacterial populations be used in forensic investigations Soil Biol. Bio-chem. 38, 1188-1192. 

Schneider, V., The role in hair in forensic investigations, in Hair Research Status and Future Aspects, Orfanos, C. E., Montagna, W., and Stuttgen, G., Eds., Springer-Verlag, Berlin, 1981, 459. 

Finally, due to the highly significant correlation between scalp, axillary, and pubic hair concentrations, nonhead hair may be a useful alternative in forensic investigations when head hair is not available. 

Thin-layer chromatography Is commonly employed to determine pigmentation of plants, using extracts of leaves. This method is also used to detect pesticides or insecticides in foods and has been instrumental in analysis of the dye composition of fibres from clothing in forensic investigations. 

GigUano, S. G., Catmabois sativa L. - botanical problems and molecular approaches in forensic investigations , Forensic Sci. Rev., 13, 2-17 (2001). 

Spectrometric methods such as IR spectroscopy give information on the main components of the examined samples (dyes, resins and oily liquids). The main pigments are easily detectable in the IR spectra of inks. Because of its non-destructive nature, Raman spectroscopy is applied in forensic investigations for the identification of inks directly on a document, and for determination of the... 

To learn more about chemical analytical techniques that use light, visit the Chemistry Web site at chemistrymc.com Activity Research the roles that infrared and ultraviolet light have played in forensic investigations. Share with the class a particular case that was solved with these tools. 

The Pharmacokinetics section of each chapter covers absorption, tissue distribution, elimination, and body fluid concentrations. Such pharmacokinetic information is usually not included in other sources and may be useful in forensic investigations or in the clinical setting regarding use of the product in patients with renal or hepatic insufficiency. A section on Adverse Effects and Toxicity follows and includes detailed information on case reports of adverse reactions to the herb. The Interactions section includes discussions of interactions between the supplement and drugs or foods. The Reproduction section follows and is generally limited because of lack of information. Each chapter ends with a discussion of Regulatory Status of the product. The amount of information included in each of these sections varies according to availability. 

Meiggs, T.O. (1980) The use of sediment analysis in forensic investigations and procedural requirements for such studies. In ibid. pp. 297-308. 

All volatile amines have odors that humans find offensive, and amines are responsible for many of the odors characteristic of dead, decaying organisms. Two amines found in decaying human remains are putres-cine and cadaverine. Specially trained dogs are used to locate human remains using these distinctive odors. Sniffer dogs are often used after catastrophic events, such as tsunamis, hurricanes, and earthquakes. They are also used in forensic investigations. 

The use of diphenylamine in concentrated sulphuric acid to identify cellulose nitrate was originally used in forensic investigations in the 1930s to detect the presence of explosives on suspects hands (Gowan and Purdon, 1967). As a forensic test, wax casts were taken of the suspect s hands and the diphenylamine reagent applied to the wax. Sulphuric acid reacts with cellulose nitrate to form nitronium ions (N02 ) which then oxidize diphenylamine to form the dark blue dye, diphenylbenzidine violet. 

---