21CHY533 FORENSIC SCIENCE-
Unit I-
Poisons: Poisons-types and classification-diagnosis of poisons in the living and the dead – clinical symptoms – postmortem appearances, Heavy metal contamination (Hg, Pb, Cd) of sea foods-use of neutron activation analysis in detecting Arsenic in human hair, Treatment in cases of poisoning – use of antidotes for common poisons.
Unit II-
Crime Detection: Accidental explosion during manufacture of matches and fire works, Human bombs -possible explosives (gelatin sticks and RDX) – metal detector devices – composition of bullets and detecting powder burn, Analysis of incendiary and timed bombs – spill of toxic and corrosive chemicals from tankers.
Unit III-
Forgery and Counterfeiting Documents: Different types of forged signatures-simulated and traced forgeries – inherent signs of forgery methods – writing deliberately modified uses of ultraviolet rays – comparison of type written letters – checking silver line water mark in currency notes – alloy analysis using AAS to detect counterfeit coins – detection of gold purity in 22 carat ornaments – detecting gold plated jewels – authenticity of diamond.
Unit IV-
Tracks and Traces: Tracks and traces – small tracks and police dogs-foot prints – casting of foot prints residue prints, walking pattern or tyre marks – miscellaneous traces and tracks – glass fracture – tool markpaints – fibres, Analysis of biological substances – blood, saliva, urine and hair- Cranial analysis (head and teeth) DNA. Finger printing for tissue identification in dismembered bodies -Detecting steroid consumption in athletes and race
horses.
Unit V-
Medical Aspects: Aids – causes and prevention – misuse of scheduled drugs – burns and their treatment by plastic surgery, Metabolite analysis using mass spectrum – gas chromatography, Arson-natural fires and arson – burning characteristics and chemistry of combustible materials – nature of combustion, Ballistics – classification – internal and terminal ballistics – small arms – laboratory examination of barrel washing and detection of powder residue by chemical tests.
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