Chapter 4l Forensic Science

Publisher Summary This chapter discusses the use of forensic science. The Most obvious examples of modern forensic science are in the use of fingerprints and blood grouping. Chemical techniques, particularly involving characteristic trace element analysis, have been successfully applied in the elucidation of forensic problems. The forensic scientist employed in the analysis of specimens for metal concentrations is involved in two main areas of investigation. The first is in the determination of toxic metals in biological tissue to ascertain the cause of death or injury in suspected poisoning cases. The second is to compare certain characteristic trace element concentrations in materials found at the scene of the crime with the same type of material found in the possession of the accused. A special case of this second approach is in the analysis of the elements barium, antimony, and lead, deposited on people's hands after they have discharged a firearm. With the introduction of comprehensive legislation relating to health and safety in industry, the forensic scientist is called upon to examine possibly hazardous concentrations of dust and fumes in the factory environment and to give evidence on the results.